// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.


//
//  Purpose:	Classes related to the Data Points:
//				DataPointCollection - data points collection class
//				DataPoint - data point properties and methods
//				DataPointCustomProperties - data point & series properties
//				DataPointComparer - used for sorting data points in series
//

using System;
using System.Windows.Forms;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.Common;
using System.Diagnostics.CodeAnalysis;
using System.Drawing;
using System.Drawing.Design;
using System.Globalization;
using System.Text;
using FastReport.DataVisualization.Charting.Utilities;
using FastReport.Design.DataVisualization.Charting;

namespace FastReport.DataVisualization.Charting
{
    #region CustomProperties enumeration

    /// <summary>
    /// Enumeration of common properties names.
    /// </summary>
    internal enum	CommonCustomProperties
		{
			PointName,
			Label,
			AxisLabel, 
			LabelFormat,
			IsValueShownAsLabel,
			Color, 
			BorderColor, 
			BorderDashStyle, 
			BorderWidth, 
			BackImage, 
			BackImageWrapMode,
			BackImageAlignment,
			BackImageTransparentColor,
			BackGradientStyle,
			BackSecondaryColor,
			BackHatchStyle, 
			Font, 
			LabelForeColor, 
			LabelAngle, 
			MarkerStyle, 
			MarkerSize, 
			MarkerImage,
			MarkerImageTransparentColor,
			MarkerColor,
			MarkerBorderColor,
			MarkerBorderWidth,
			MapAreaAttributes,
            PostBackValue,
            MapAreaType,
            LegendMapAreaType,
            LabelMapAreaType,
            Url,
            ToolTip,
            Tag,
			LegendUrl,
			LegendToolTip,
			LegendText,
			LegendMapAreaAttributes,
            LegendPostBackValue,
            IsVisibleInLegend,
			LabelUrl,
			LabelToolTip,
			LabelMapAreaAttributes,
            LabelPostBackValue,
			LabelBorderColor, 
			LabelBorderDashStyle, 
			LabelBorderWidth, 
			LabelBackColor,
		};

		#endregion 

	/// <summary>
	/// Data points comparer class
	/// </summary>
	[
	SRDescription("DescriptionAttributeDataPointComparer_DataPointComparer")
	]
    public class DataPointComparer : IComparer<DataPoint>
	{
		#region Fields

		// Sorting order
		private PointSortOrder _sortingOrder = PointSortOrder.Ascending;

		// Sorting value index
		private int				_sortingValueIndex = 1;

		#endregion

		#region Constructors

		/// <summary>
		/// Private default constructor.
		/// </summary>
		private DataPointComparer()
		{
		}

		/// <summary>
		/// Data points comparer class constructor.
		/// </summary>
		/// <param name="series">Data series.</param>
        /// <param name="sortOrder">Sorting order.</param>
		/// <param name="sortBy">Value used for sorting ("X", "Y or Y1", "Y2", ...).</param>
        public DataPointComparer(Series series, PointSortOrder sortOrder, string sortBy)
		{
			// Check if sorting value is valid
			sortBy = sortBy.ToUpper(System.Globalization.CultureInfo.InvariantCulture);
			if(String.Compare(sortBy, "X", StringComparison.Ordinal) == 0)
			{
				_sortingValueIndex = -1;
			}
            else if (String.Compare(sortBy, "Y", StringComparison.Ordinal) == 0)
			{
				_sortingValueIndex = 0;
			}
            else if (String.Compare(sortBy, "AXISLABEL", StringComparison.Ordinal) == 0)
			{
				_sortingValueIndex = -2;
			}
			else if(sortBy.Length == 2 && 
					sortBy.StartsWith("Y", StringComparison.Ordinal) && 
					Char.IsDigit(sortBy[1]))
			{
				_sortingValueIndex = Int32.Parse(sortBy.Substring(1), System.Globalization.CultureInfo.InvariantCulture) - 1;
			}
			else
			{
				throw(new ArgumentException( SR.ExceptionDataPointConverterInvalidSorting, "sortBy"));
			}

			// Check if data series support as many Y values as required
			if(_sortingValueIndex > 0 && _sortingValueIndex >= series.YValuesPerPoint)
			{
				throw(new ArgumentException( SR.ExceptionDataPointConverterUnavailableSorting(sortBy, series.YValuesPerPoint.ToString(System.Globalization.CultureInfo.InvariantCulture) ), "sortBy"));
			}

            this._sortingOrder = sortOrder;
		}

		#endregion

		#region Comparing method

		/// <summary>
		/// Compares two data points.
		/// </summary>
		/// <param name="x">First data point.</param>
		/// <param name="y">Second data point.</param>
		/// <returns>If the two values are equal, it returns zero.  If point 1 is greater than point 2, 
        /// it returns a positive integer; otherwise, it returns a negative integer.
        /// </returns>
		public int Compare(DataPoint x, DataPoint y)
		{
			int result = -1;

			// Compare X value
			if(_sortingValueIndex == -1)
			{
				result = x.XValue.CompareTo(y.XValue);
			}
			// Compare Axis Label value
			else if(_sortingValueIndex == -2)
			{
                result = string.Compare(x.AxisLabel, y.AxisLabel, StringComparison.CurrentCulture);
			}
			// Compare one of the Y value(s)
			else
			{
				result = x.YValues[_sortingValueIndex].CompareTo(y.YValues[_sortingValueIndex]);
			}

			// Invert result depending on the sorting order
			if(this._sortingOrder == PointSortOrder.Descending)
			{
				result = -result;
			}

			return result;
		}

		#endregion
	}

	/// <summary>
	/// A collection of data points.
	/// </summary>
	[
		SRDescription("DescriptionAttributeDataPointCollection_DataPointCollection"),
	]
    public class DataPointCollection : ChartElementCollection<DataPoint>
	{
		#region Fields

		// Reference to the sereies of data points
		internal Series		series = null;

		#endregion

		#region Constructors and Initialization

		/// <summary>
		/// Data Point Collection object constructor.
		/// </summary>
		/// <param name="series">Series object, which the Data Point Collection belongs to.</param>
		internal DataPointCollection(Series series) : base(series)
		{
			this.series = series;
		}

		/// <summary>
		/// Initialize data point series and name.
		/// </summary>
		/// <param name="dataPoint">Reference to the data point object to initialize.</param>
		internal void DataPointInit(ref DataPoint dataPoint)
		{
			DataPointInit(this.series, ref dataPoint);
		}

		/// <summary>
		/// Initialize data point series and name.
		/// </summary>
		/// <param name="series">Series the data point belongs to.</param>
		/// <param name="dataPoint">Reference to the data point object to initialize.</param>
		internal static void DataPointInit(Series series, ref DataPoint dataPoint)
		{
			dataPoint.series = series;

			if(dataPoint.AxisLabel.Length > 0 && series != null)
			{
				series.noLabelsInPoints = false;
			}

			// Set flag that tooltips flags should be recalculated
			if(dataPoint.ToolTip.Length > 0 && 
				dataPoint.LegendToolTip.Length > 0 && 
				dataPoint.LabelToolTip.Length > 0 && 
				series != null && series.Chart != null && series.Chart.selection != null)
			{
				series.Chart.selection.enabledChecked = false;
			}            
		}

		#endregion

		#region Data point binding, adding and inserting methods

        /// <summary>
        /// Adds the new DataPoint to a collection and sets its Y values.
        /// </summary>
        /// <param name="y">The y.</param>
        /// <returns></returns>
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
            Justification = "X and Y are cartesian coordinates and well understood")]
        public DataPoint Add(params double[] y) 
        {
            DataPoint point = new DataPoint(0, y);
            this.Add(point);
            return point;
        }

        /// <summary>
        /// Parse the input parameter with other point attribute binding rule
        /// in format: PointProperty=Field[{Format}] [,PointProperty=Field[{Format}]]. 
        /// For example: "Tooltip=Price{C1},Url=WebSiteName".
        /// </summary>
        /// <param name="otherFields">Other fields parameter.</param>
        /// <param name="otherAttributeNames">Returns array of attribute names.</param>
        /// <param name="otherFieldNames">Returns array of field names.</param>
        /// <param name="otherValueFormat">Returns array of format strings.</param>
		internal static void ParsePointFieldsParameter(
			string otherFields,
			ref string[] otherAttributeNames,
			ref string[] otherFieldNames,
			ref string[] otherValueFormat)
		{
			if(otherFields != null && otherFields.Length > 0)
			{
				// Split string by comma
				otherAttributeNames = otherFields.Replace(",,", "\n").Split(',');
				otherFieldNames = new string[otherAttributeNames.Length];
				otherValueFormat = new string[otherAttributeNames.Length];

				// Loop through all strings
				for(int index = 0; index < otherAttributeNames.Length; index++)
				{
					// Split string by equal sign
					int equalSignIndex = otherAttributeNames[index].IndexOf('=');
					if(equalSignIndex > 0)
					{
						otherFieldNames[index] = otherAttributeNames[index].Substring(equalSignIndex + 1);
						otherAttributeNames[index] = otherAttributeNames[index].Substring(0, equalSignIndex);
					}
					else
					{
                        throw (new ArgumentException(SR.ExceptionParameterFormatInvalid, "otherFields"));
					}

					// Check if format string was specified
					int bracketIndex = otherFieldNames[index].IndexOf('{');
					if(bracketIndex > 0 && otherFieldNames[index][otherFieldNames[index].Length - 1] == '}')
					{
						otherValueFormat[index] = otherFieldNames[index].Substring(bracketIndex + 1);
						otherValueFormat[index] = otherValueFormat[index].Trim('{', '}');
						otherFieldNames[index] = otherFieldNames[index].Substring(0, bracketIndex);
					}

					// Trim and replace new line character
					otherAttributeNames[index] = otherAttributeNames[index].Trim().Replace("\n", ",");
					otherFieldNames[index] = otherFieldNames[index].Trim().Replace("\n", ",");
                    if ( otherValueFormat[index] != null )
                         otherValueFormat[index] = otherValueFormat[index].Trim().Replace("\n", ",");
				}
			}
		}

		/// <summary>
		/// Data bind X, Y and other values (like Tooltip, LabelStyle,...) of the data points to the data source.
		/// Data source can be the Ole(SQL)DataReader, DataView, DataSet, DataTable or DataRow.
		/// </summary>
		/// <param name="dataSource">Data source.</param>
		/// <param name="xField">Name of the field for X values.</param>
		/// <param name="yFields">Comma separated names of the fields for Y values.</param>
		/// <param name="otherFields">Other point properties binding rule in format: PointProperty=Field[{Format}] [,PointProperty=Field[{Format}]]. For example: "Tooltip=Price{C1},Url=WebSiteName".</param>
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
            Justification = "X and Y are cartesian coordinates and well understood")]
        public void DataBind(IEnumerable dataSource, string xField, string yFields, string otherFields)
		{
            // Check arguments
            if (dataSource == null)
                throw new ArgumentNullException("dataSource", SR.ExceptionDataPointInsertionNoDataSource);
            if (dataSource is string)
                throw (new ArgumentException(SR.ExceptionDataBindSeriesToString, "dataSource"));
            if (yFields == null)
                throw new ArgumentNullException("yFields");

            // Convert comma separated Y values field names string to array of names
			string[] yFieldNames = yFields.Replace(",,", "\n").Split(',');
			for(int index = 0; index < yFieldNames.Length; index++)
			{
				yFieldNames[index] = yFieldNames[index].Replace("\n", ",");
			}

            if (yFieldNames.GetLength(0) > series.YValuesPerPoint)
                throw (new ArgumentOutOfRangeException("yFields", SR.ExceptionDataPointYValuesCountMismatch(series.YValuesPerPoint.ToString(System.Globalization.CultureInfo.InvariantCulture))));

			// Convert other fields/properties names to two arrays of names
			string[] otherAttributeNames = null;
			string[] otherFieldNames = null;
			string[] otherValueFormat = null;
			ParsePointFieldsParameter(
				otherFields,
				ref otherAttributeNames,
				ref otherFieldNames,
				ref otherValueFormat);		

			// Remove all existing data points
			this.Clear();

			// Get and reset enumerator
			IEnumerator	enumerator = GetDataSourceEnumerator(dataSource);
            if (enumerator.GetType() != typeof(System.Data.Common.DbEnumerator))
			{
                try
                {
                    enumerator.Reset();
                }
                // Some enumerators may not support Resetting 
                catch (InvalidOperationException)
                {
                }
                catch (NotImplementedException)
                {
                }
                catch (NotSupportedException)
                {
                }
			}

			// Add data points
			bool		valueExsist = true;
			object[]	yValuesObj = new object[yFieldNames.Length];
			object		xValueObj = null;
			bool		autoDetectType = true;

            this.SuspendUpdates();
            try
            {
                do
                {
                    // Move to the next objects in the enumerations
                    if (valueExsist)
                    {
                        valueExsist = enumerator.MoveNext();
                    }

                    // Auto detect valu(s) type
                    if (autoDetectType)
                    {
                        autoDetectType = false;
                        AutoDetectValuesType(this.series, enumerator, xField, enumerator, yFieldNames[0]);
                    }

                    // Create and initialize data point
                    if (valueExsist)
                    {
                        DataPoint newDataPoint = new DataPoint(series);
                        bool emptyValues = false;

                        // Set X to the value provided
                        if (xField.Length > 0)
                        {
                            xValueObj = ConvertEnumerationItem(enumerator.Current, xField);
                            if (IsEmptyValue(xValueObj))
                            {
                                emptyValues = true;
                                xValueObj = 0.0;
                            }
                        }

                        // Set Y values
                        if (yFieldNames.Length == 0)
                        {
                            yValuesObj[0] = ConvertEnumerationItem(enumerator.Current, null);
                            if (IsEmptyValue(yValuesObj[0]))
                            {
                                emptyValues = true;
                                yValuesObj[0] = 0.0;
                            }
                        }
                        else
                        {
                            for (int i = 0; i < yFieldNames.Length; i++)
                            {
                                yValuesObj[i] = ConvertEnumerationItem(enumerator.Current, yFieldNames[i]);
                                if (IsEmptyValue(yValuesObj[i]))
                                {
                                    emptyValues = true;
                                    yValuesObj[i] = 0.0;
                                }
                            }
                        }

                        // Set other values
                        if (otherAttributeNames != null &&
                            otherAttributeNames.Length > 0)
                        {
                            for (int i = 0; i < otherFieldNames.Length; i++)
                            {
                                // Get object by field name
                                object obj = ConvertEnumerationItem(enumerator.Current, otherFieldNames[i]);
                                if (!IsEmptyValue(obj))
                                {
                                    newDataPoint.SetPointCustomProperty(
                                        obj,
                                        otherAttributeNames[i],
                                        otherValueFormat[i]);
                                }
                            }
                        }

                        // IsEmpty value was detected
                        if (emptyValues)
                        {
                            if (xValueObj != null)
                            {
                                newDataPoint.SetValueXY(xValueObj, yValuesObj);
                            }
                            else
                            {
                                newDataPoint.SetValueXY(0, yValuesObj);
                            }
                            DataPointInit(ref newDataPoint);
                            newDataPoint.IsEmpty = true;
                            this.Add(newDataPoint);
                        }
                        else
                        {
                            if (xValueObj != null)
                            {
                                newDataPoint.SetValueXY(xValueObj, yValuesObj);
                            }
                            else
                            {
                                newDataPoint.SetValueXY(0, yValuesObj);
                            }
                            DataPointInit(ref newDataPoint);
                            this.Add(newDataPoint);
                        }
                    }

                } while (valueExsist);

            }
            finally
            {
                this.ResumeUpdates();
            }
		}

		/// <summary>
		/// Data bind Y values of the data points to the data source.
		/// Data source can be the Array, Collection, Ole(SQL)DataReader, DataView, DataSet, DataTable or DataRow.
		/// </summary>
		/// <param name="yValue">One or more enumerable objects with Y values.</param>
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
            Justification = "Y is a cartesian coordinate and well understood")]
        public void DataBindY(params IEnumerable[] yValue)
		{
			DataBindXY(null, yValue);
		}

		/// <summary>
		/// Data bind X and Y values of the data points to the data source.
		/// Data source can be the Array, Collection, Ole(SQL)DataReader, DataView, DataSet, DataTable or DataRow.
		/// </summary>
		/// <param name="xValue">Enumerable objects with X values.</param>
		/// <param name="yValues">One or more enumerable objects with Y values.</param>
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
            Justification = "X and Y are cartesian coordinates and well understood")]
        public void DataBindXY(IEnumerable xValue, params IEnumerable[] yValues)
		{
            // Y value must be provided
            if (yValues == null || 
                yValues.Length==1 && yValues[0]==null)
                throw new ArgumentNullException("yValues");
            if (yValues.GetLength(0) == 0)
                throw new ArgumentException(SR.ExceptionDataPointBindingYValueNotSpecified, "yValues");

			// Double check that a string object is not provided for data binding
			for(int i = 0; i < yValues.Length; i++)
			{
				if(yValues[i] is string)
				{
                    throw (new ArgumentException(SR.ExceptionDataBindYValuesToString, "yValues"));
				}
			}

			// Check if number of Y values do not out of range
			if(yValues.GetLength(0) > series.YValuesPerPoint)
			{
				throw(new ArgumentOutOfRangeException("yValues", SR.ExceptionDataPointYValuesBindingCountMismatch( series.YValuesPerPoint.ToString(System.Globalization.CultureInfo.InvariantCulture) ) ) );
			}

			// Remove all existing data points
			this.Clear();

			// Reset X, Y enumerators
			IEnumerator	xEnumerator = null;
			IEnumerator[]	yEnumerator = new IEnumerator[yValues.GetLength(0)];
			if(xValue != null)
			{
				// Double check that a string object is not provided for data binding
				if(xValue is string)
				{
                    throw (new ArgumentException(SR.ExceptionDataBindXValuesToString, "xValue"));
				}
				
				// Get and reset Y values enumerators
				xEnumerator = GetDataSourceEnumerator(xValue);
				if(xEnumerator.GetType() != typeof(System.Data.Common.DbEnumerator))
				{
					xEnumerator.Reset();
				}
			}
			for(int i = 0; i < yValues.Length; i++)
			{
				// Get and reset Y values enumerators
				yEnumerator[i] = GetDataSourceEnumerator(yValues[i]);
				if(yEnumerator[i].GetType() != typeof(System.Data.Common.DbEnumerator))
				{
					yEnumerator[i].Reset();
				}
			}

			// Add data points
			bool		xValueExsist = false;
			bool		yValueExsist = true;
			object[]	yValuesObj = new object[series.YValuesPerPoint];
			object		xValueObj = null;
			bool		autoDetectType = true;

            SuspendUpdates();
            try
            {
                do
                {
                    // Move to the next objects in the enumerations
                    yValueExsist = true;
                    for (int i = 0; i < yValues.Length; i++)
                    {
                        if (yValueExsist)
                        {
                            yValueExsist = yEnumerator[i].MoveNext();
                        }
                    }
                    if (xValue != null)
                    {
                        xValueExsist = xEnumerator.MoveNext();
                        if (yValueExsist && !xValueExsist)
                        {
                            throw (new ArgumentOutOfRangeException("xValue", SR.ExceptionDataPointInsertionXValuesQtyIsLessYValues));
                        }
                    }

                    // Auto detect value(s) type
                    if (autoDetectType)
                    {
                        autoDetectType = false;
                        AutoDetectValuesType(this.series, xEnumerator, null, yEnumerator[0], null);
                    }

                    // Create and initialize data point
                    if (xValueExsist || yValueExsist)
                    {
                        DataPoint newDataPoint = new DataPoint(series);
                        bool emptyValues = false;

                        // Set X to the value provided
                        if (xValueExsist)
                        {
                            xValueObj = ConvertEnumerationItem(xEnumerator.Current, null);
                            if (xValueObj is System.DBNull || xValueObj == null)
                            {
                                emptyValues = true;
                                xValueObj = 0.0;
                            }
                        }

                        // Set Y values
                        for (int i = 0; i < yValues.Length; i++)
                        {
                            yValuesObj[i] = ConvertEnumerationItem(yEnumerator[i].Current, null);
                            if (yValuesObj[i] is System.DBNull || yValuesObj[i] == null)
                            {
                                emptyValues = true;
                                yValuesObj[i] = 0.0;
                            }
                        }

                        // IsEmpty value was detected
                        if (emptyValues)
                        {
                            if (xValueObj != null)
                            {
                                newDataPoint.SetValueXY(xValueObj, yValuesObj);
                            }
                            else
                            {
                                newDataPoint.SetValueXY(0, yValuesObj);
                            }
                            DataPointInit(ref newDataPoint);
                            newDataPoint.IsEmpty = true;
                            this.Add(newDataPoint);
                        }
                        else
                        {
                            if (xValueObj != null)
                            {
                                newDataPoint.SetValueXY(xValueObj, yValuesObj);
                            }
                            else
                            {
                                newDataPoint.SetValueXY(0, yValuesObj);
                            }
                            DataPointInit(ref newDataPoint);
                            this.Add(newDataPoint);
                        }

                    }

                } while (xValueExsist || yValueExsist);

            }
            finally 
            {
                this.ResumeUpdates();
            }
		}

		/// <summary>
		/// Data bind Y values of the data points to the data source.
		/// Data source can be the Array, Collection, Ole(SQL)DataReader, DataView, DataSet, DataTable or DataRow.
		/// </summary>
		/// <param name="yValue">Enumerable objects with Y values.</param>
		/// <param name="yFields">Name of the fields for Y values.</param>
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
            Justification = "X and Y are cartesian coordinates and well understood")]
        public void DataBindY(IEnumerable yValue, string yFields)
		{
			DataBindXY(null, null, yValue, yFields);
		}

		/// <summary>
		/// Data bind X and Y values of the data points to the data source.
		/// Data source can be the Array, Collection, Ole(SQL)DataReader, DataView, DataSet, DataTable or DataRow.
		/// </summary>
		/// <param name="xValue">Enumerable object with X values.</param>
		/// <param name="xField">Name of the field for X values.</param>
		/// <param name="yValue">Enumerable objects with Y values.</param>
		/// <param name="yFields">Comma separated names of the fields for Y values.</param>
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
            Justification = "X and Y are cartesian coordinates and well understood")]
        public void DataBindXY(IEnumerable xValue, string xField, IEnumerable yValue, string yFields)
		{
            // Check arguments
            if (xValue is string)
                throw new ArgumentException(SR.ExceptionDataBindXValuesToString, "xValue");
            if (yValue == null)
                throw new ArgumentNullException("yValue", SR.ExceptionDataPointInsertionYValueNotSpecified);
            if (yValue is string)
                throw new ArgumentException(SR.ExceptionDataBindYValuesToString, "yValue");
            if (yFields == null)
                throw new ArgumentOutOfRangeException("yFields", SR.ExceptionDataPointYValuesCountMismatch(series.YValuesPerPoint.ToString(System.Globalization.CultureInfo.InvariantCulture)));

			// Convert comma separated field names string to array of names
			string[] yFieldNames = yFields.Replace(",,", "\n").Split(',');;
			for(int index = 0; index < yFieldNames.Length; index++)
			{
				yFieldNames[index] = yFieldNames[index].Replace("\n", ",");
			}
            if (yFieldNames.GetLength(0) > series.YValuesPerPoint)
                throw new ArgumentOutOfRangeException("yFields", SR.ExceptionDataPointYValuesCountMismatch(series.YValuesPerPoint.ToString(System.Globalization.CultureInfo.InvariantCulture)));
			
			// Remove all existing data points
			this.Clear();

			// Reset X, Y enumerators
			IEnumerator	xEnumerator = null;
			IEnumerator	yEnumerator = GetDataSourceEnumerator(yValue);
			
			if(yEnumerator.GetType() != typeof(System.Data.Common.DbEnumerator))
			{
				yEnumerator.Reset();
			}

			if(xValue != null)
			{
				if(xValue != yValue)
				{
					xEnumerator = GetDataSourceEnumerator(xValue);
					if(xEnumerator.GetType() != typeof(System.Data.Common.DbEnumerator))
					{
						xEnumerator.Reset();
					}
				}
				else
				{
					xEnumerator = yEnumerator;
				}
			}

			// Add data points
			bool		xValueExsist = false;
			bool		yValueExsist = true;
			object[]	yValuesObj = new object[yFieldNames.Length];
			object		xValueObj = null;
			bool		autoDetectType = true;

            this.SuspendUpdates();
            try
            {
                do
                {
                    // Move to the next objects in the enumerations
                    if (yValueExsist)
                    {
                        yValueExsist = yEnumerator.MoveNext();
                    }
                    if (xValue != null)
                    {
                        if (xValue != yValue)
                        {
                            xValueExsist = xEnumerator.MoveNext();
                            if (yValueExsist && !xValueExsist)
                            {
                                throw (new ArgumentOutOfRangeException("xValue", SR.ExceptionDataPointInsertionXValuesQtyIsLessYValues));
                            }
                        }
                        else
                        {
                            xValueExsist = yValueExsist;
                        }
                    }

                    // Auto detect valu(s) type
                    if (autoDetectType)
                    {
                        autoDetectType = false;
                        AutoDetectValuesType(this.series, xEnumerator, xField, yEnumerator, yFieldNames[0]);
                    }

                    // Create and initialize data point
                    if (xValueExsist || yValueExsist)
                    {
                        DataPoint newDataPoint = new DataPoint(series);
                        bool emptyValues = false;

                        // Set X to the value provided or use sequence numbers starting with 1
                        if (xValueExsist)
                        {
                            xValueObj = ConvertEnumerationItem(xEnumerator.Current, xField);
                            if (IsEmptyValue(xValueObj))
                            {
                                emptyValues = true;
                                xValueObj = 0.0;
                            }

                        }

                        if (yFieldNames.Length == 0)
                        {
                            yValuesObj[0] = ConvertEnumerationItem(yEnumerator.Current, null);
                            if (IsEmptyValue(yValuesObj[0]))
                            {
                                emptyValues = true;
                                yValuesObj[0] = 0.0;
                            }
                        }
                        else
                        {
                            for (int i = 0; i < yFieldNames.Length; i++)
                            {
                                yValuesObj[i] = ConvertEnumerationItem(yEnumerator.Current, yFieldNames[i]);
                                if (IsEmptyValue(yValuesObj[i]))
                                {
                                    emptyValues = true;
                                    yValuesObj[i] = 0.0;
                                }
                            }
                        }

                        // IsEmpty value was detected
                        if (emptyValues)
                        {
                            if (xValueObj != null)
                            {
                                newDataPoint.SetValueXY(xValueObj, yValuesObj);
                            }
                            else
                            {
                                newDataPoint.SetValueXY(0, yValuesObj);
                            }
                            DataPointInit(ref newDataPoint);
                            newDataPoint.IsEmpty = true;
                            this.Add(newDataPoint);
                        }
                        else
                        {
                            if (xValueObj != null)
                            {
                                newDataPoint.SetValueXY(xValueObj, yValuesObj);
                            }
                            else
                            {
                                newDataPoint.SetValueXY(0, yValuesObj);
                            }
                            DataPointInit(ref newDataPoint);
                            this.Add(newDataPoint);
                        }
                    }

                } while (xValueExsist || yValueExsist);

            }
            finally 
            {
                this.ResumeUpdates();
            }
		}

		/// <summary>
		/// Returns true if objet represents an empty value.
		/// </summary>
		/// <param name="val">Value to test.</param>
		/// <returns>True if empty.</returns>
		internal static bool IsEmptyValue(object val)
		{
			if(val is System.DBNull || val == null)
			{
				return true;
			}
			if(val is double && double.IsNaN((double)val))
			{
				return true;
			}
			if(val is Single && Single.IsNaN((Single)val))
			{
				return true;
			}

			return false;
		}

		/// <summary>
		/// Adds one data point with one Y value.
		/// </summary>
		/// <param name="yValue">Y value of the data point.</param>
		/// <returns>Index of newly added data point.</returns>
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
            Justification = "Y is a cartesian coordinate and well understood")]
		public int AddY(double yValue)
		{
			// Create new point object
			DataPoint	newDataPoint = new DataPoint(series);
			newDataPoint.SetValueY(yValue);
			DataPointInit(ref newDataPoint);
            Add(newDataPoint);
            return Count - 1;
		}

		/// <summary>
		/// Adds one data point with one or more Y values.
		/// </summary>
		/// <param name="yValue">List of Y values of the data point.</param>
		/// <returns>Index of newly added data point.</returns>
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
            Justification = "Y is a cartesian coordinate and well understood")]
        public int AddY(params object[] yValue)
		{
            //Check arguments
            if (yValue == null || 
                yValue.Length==1 && yValue[0]==null)
                throw new ArgumentNullException("yValue");

			// Auto detect DateTime values type
			if(this.series.YValueType == ChartValueType.Auto && 
				yValue.Length > 0 &&
				yValue[0] != null)
			{
                if (yValue[0] is DateTime)
                {
                    this.series.YValueType = ChartValueType.DateTime;
                    this.series.autoYValueType = true;
                }
                else if (yValue[0] is DateTimeOffset)
                {
                    this.series.YValueType = ChartValueType.DateTimeOffset;
                    this.series.autoYValueType = true;
                }
			}

			// Create new point object
			DataPoint newDataPoint = new DataPoint(series);
			newDataPoint.SetValueY(yValue);
			DataPointInit(ref newDataPoint);
            Add(newDataPoint);
            return Count - 1;
		}

		/// <summary>
		/// Adds one data point with X value and one Y value.
		/// </summary>
		/// <param name="yValue">Y value of the data point.</param>
		/// <param name="xValue">X value of the data point.</param>
		/// <returns>Index of newly added data poit.</returns>
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
            Justification = "X and Y are cartesian coordinates and well understood")]
        public int AddXY(double xValue, double yValue)
		{
			// Create new point object
			DataPoint	newDataPoint = new DataPoint(series);
			newDataPoint.SetValueXY(xValue, yValue);
			DataPointInit(ref newDataPoint);
            Add(newDataPoint);
            return Count - 1;
		}

		/// <summary>
		/// Adds one data point with X value and one or more Y values.
		/// </summary>
		/// <param name="yValue">List of Y values of the data point.</param>
		/// <param name="xValue">X value of the data point.</param>
		/// <returns>Index of newly added data poit.</returns>
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
            Justification = "X and Y are cartesian coordinates and well understood")]
        public int AddXY(object xValue, params object[] yValue)
		{

			// Auto detect DateTime and String values type
			if(this.series.XValueType == ChartValueType.Auto)
			{
				if(xValue is DateTime)
				{
					this.series.XValueType = ChartValueType.DateTime;
				}
                if(xValue is DateTimeOffset)
                {
                    this.series.XValueType = ChartValueType.DateTimeOffset;
                }
                if(xValue is string)
				{
					this.series.XValueType = ChartValueType.String;
				}
			
				this.series.autoXValueType = true;
			}

			if(this.series.YValueType == ChartValueType.Auto && 
				yValue.Length > 0 &&
				yValue[0] != null)
			{
                if (yValue[0] is DateTime)
                {
                    this.series.YValueType = ChartValueType.DateTime;
                    this.series.autoYValueType = true;
                }
                else if (yValue[0] is DateTimeOffset)
                {
                    this.series.YValueType = ChartValueType.DateTimeOffset;
                    this.series.autoYValueType = true;
                }
			}

			// Create new point object
			DataPoint	newDataPoint = new DataPoint(series);
			newDataPoint.SetValueXY(xValue, yValue);
			DataPointInit(ref newDataPoint);
            Add(newDataPoint);
            return Count - 1;
		}

        /// <summary>
        /// Insert one data point with X value and one or more Y values.
        /// </summary>
        /// <param name="index">Index after which to insert the data point.</param>
        /// <param name="xValue">X value of the data point.</param>
        /// <param name="yValue">List of Y values of the data point.</param>
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
            Justification = "X and Y are cartesian coordinates and well understood")]
        public void InsertXY(int index, object xValue, params object[] yValue)
		{
			DataPoint	newDataPoint = new DataPoint(series);
			newDataPoint.SetValueXY(xValue, yValue);
			DataPointInit(ref newDataPoint);			
			this.Insert(index, newDataPoint);
		}

        /// <summary>
        /// Insert one data point with one or more Y values.
        /// </summary>
        /// <param name="index">Index after which to insert the data point.</param>
        /// <param name="yValue">List of Y values of the data point.</param>
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
            Justification = "Y is a cartesian coordinate and well understood")]
        public void InsertY(int index, params object[] yValue)
		{
			DataPoint	newDataPoint = new DataPoint(series);
			newDataPoint.SetValueY(yValue);
			DataPointInit(ref newDataPoint);			
			this.Insert(index, newDataPoint);
		}

		/// <summary>
		/// Get data source enumerator object helper function.
		/// </summary>
		/// <param name="dataSource">Data source.</param>
		/// <returns>Returns data source enumerator.</returns>
		internal static IEnumerator GetDataSourceEnumerator(IEnumerable dataSource)
		{
            DataView dataView = dataSource as DataView;
			if(dataView != null)
			{
				return dataView.GetEnumerator();
			}
            DataSet dataSet = dataSource as DataSet;
			if(dataSet != null)
			{
				if(dataSet.Tables.Count > 0)
				{
					return dataSet.Tables[0].Rows.GetEnumerator();
				}
			}

			return dataSource.GetEnumerator();
		}

		/// <summary>
		/// Convert enumeration item object from DataRow and DataRowView 
		/// to the actual value of specified column in row
		/// </summary>
		/// <param name="item">Enumeration item.</param>
		/// <param name="fieldName">Converted item.</param>
		/// <returns></returns>
		internal static object ConvertEnumerationItem(object item, string fieldName)
		{
			object	result = item;

			// If original object is DataRow
            DataRow dataRow = item as DataRow;
			if(dataRow != null)
			{
				if(fieldName != null && fieldName.Length > 0)
				{
					// Check if specified column exist
					bool	failed = true;
                    if (dataRow.Table.Columns.Contains(fieldName))
                    {
                        result = dataRow[fieldName];
                        failed = false;
                    }
                    else
                    {
                        // Try to treat field name as column index number
                        int columnIndex;
                        failed = !int.TryParse(fieldName, NumberStyles.Any, CultureInfo.InvariantCulture, out columnIndex);

                        if (!failed && columnIndex < dataRow.Table.Columns.Count && columnIndex >= 0)
                        {
                            result = dataRow[columnIndex];
                        }
                    }

					if(failed)
					{
						throw(new ArgumentException( SR.ExceptionColumnNameNotFound( fieldName) ) );
					}
				}
				else
				{
					// Get first column value if name not specified
					result = dataRow[0];
				}
			}

			// If original object is DataRowView

            DataRowView dataRowView = item as DataRowView;
		    if(dataRowView != null)
			{
				if(fieldName != null && fieldName.Length > 0)
				{
					// Check if specified column exist
					bool	failed = true;
                    if (dataRowView.DataView.Table.Columns.Contains(fieldName))
                    {
                        result = dataRowView[fieldName];
                        failed = false;
                    }
                    else
                    {
                        // Try to treat field name as column index number
                        int columnIndex;
                        failed = !int.TryParse(fieldName, NumberStyles.Any, CultureInfo.InvariantCulture, out columnIndex);
                        if (!failed && columnIndex < dataRowView.DataView.Table.Columns.Count && columnIndex >= 0)
                        {
                            result = dataRowView[columnIndex];
                        }
                    }

					if(failed)
					{
						throw(new ArgumentException( SR.ExceptionColumnNameNotFound(fieldName)));
					}
				}
				else
				{
					// Get first column value if name not specified
                    result = dataRowView[0];
				}
			}

			// If original object is DbDataRecord
            DbDataRecord dbDataRecord = item as DbDataRecord;
			if(dbDataRecord != null)
			{
				if(fieldName != null && fieldName.Length > 0)
				{
					// Check if specified column exist
					bool	failed = true;
					if(!Char.IsNumber(fieldName, 0))
					{
                        try
                        {
                            result = dbDataRecord[fieldName];
                            failed = false;
                        }
                        catch (IndexOutOfRangeException)
                        {
                            failed = true;
                        }
					}

					if(failed)
					{
						// Try to treat field name as column index number
                        try
                        {
                            int columnIndex;
                            bool parseSucceed = int.TryParse(fieldName, NumberStyles.Any, CultureInfo.InvariantCulture, out columnIndex);

                            if (parseSucceed)
                            {
                                result = dbDataRecord[columnIndex];
                                failed = false;
                            }
                            else
                            {
                                failed = true;
                            }
                        }
                        catch (IndexOutOfRangeException)
                        {
                            failed = true;
                        }
					}

					if(failed)
					{
						throw(new ArgumentException( SR.ExceptionColumnNameNotFound(fieldName)));
					}

				}
				else
				{
					// Get first column value if name not specified
                    result = dbDataRecord[0];
				}
			}
            else
            {
                if (fieldName != null && fieldName.Length > 0)
                {
                    PropertyDescriptor descriptor = TypeDescriptor.GetProperties(item).Find(fieldName, true);
                    if (descriptor != null)
                    {
                        result = descriptor.GetValue(item);
                        return result ?? null;

                    }
                }
            }

			return result;
		}
		/// <summary>
		/// Auto detects the X and Y(s) values type
		/// </summary>
		/// <param name="series">Series the values type is detected for.</param>
		/// <param name="xEnumerator">X values enumerator.</param>
		/// <param name="xField">X value field.</param>
		/// <param name="yEnumerator">Y values enumerator.</param>
		/// <param name="yField">Y value field.</param>
		internal static void AutoDetectValuesType(
			Series series,
			IEnumerator xEnumerator, 
			string xField, 
			IEnumerator yEnumerator, 
			string yField)
		{
			if(series.XValueType == ChartValueType.Auto)
			{
				series.XValueType = GetValueType(xEnumerator, xField);
				if(series.XValueType != ChartValueType.Auto)
				{
					series.autoXValueType = true;
				}
			}
			if(series.YValueType == ChartValueType.Auto)
			{
				series.YValueType = GetValueType(yEnumerator, yField);
				if(series.YValueType != ChartValueType.Auto)
				{
					series.autoYValueType = true;
				}
			}
		}

		/// <summary>
		/// Return value type.
		/// </summary>
		/// <param name="enumerator">Values enumerator.</param>
		/// <param name="field">Value field.</param>
		private static ChartValueType GetValueType(IEnumerator enumerator, string field)
		{
			ChartValueType	type = ChartValueType.Auto;
			Type			columnDataType = null;

			// Check parameters
			if(enumerator == null)
			{
				return type;
			}

			// Check if current enumeration element is available
			try
			{
				if(enumerator.Current == null)
				{
					return type;
				}
			}
			catch(InvalidOperationException)
			{
				return type;
			}


			// If original object is DataRow
			if(enumerator.Current is DataRow)
			{
				if(field != null && field.Length > 0)
				{
					// Check if specified column exist
					bool	failed = true;
					if(((DataRow)enumerator.Current).Table.Columns.Contains(field))
					{
						columnDataType = ((DataRow)enumerator.Current).Table.Columns[field].DataType;
						failed = false;
					}

					// Try to treat field as column number
                    if (failed)
                    {
                        int columnIndex;
                        bool parseSucceed = int.TryParse(field, NumberStyles.Any, CultureInfo.InvariantCulture, out columnIndex);

                        if (parseSucceed)
                        {
                            columnDataType = ((DataRow)enumerator.Current).Table.Columns[columnIndex].DataType;
                            failed = false;
                        }
                        else
                        {
                            failed = true;
                        }
                    }

					if(failed)
					{
						throw(new ArgumentException( SR.ExceptionColumnNameNotFound(field)));
					}
					
				}
				else if(((DataRow)enumerator.Current).Table.Columns.Count > 0)
				{
					columnDataType = ((DataRow)enumerator.Current).Table.Columns[0].DataType;
				}
			}

			// If original object is DataRowView
			else if(enumerator.Current is DataRowView)
			{
				if(field != null && field.Length > 0)
				{
					// Check if specified column exist
					bool	failed = true;
					if(((DataRowView)enumerator.Current).DataView.Table.Columns.Contains(field))
					{
						columnDataType = ((DataRowView)enumerator.Current).DataView.Table.Columns[field].DataType;
						failed = false;
					}

					// Try to treat field as column number
                    if (failed)
                    {
                        int columnIndex;
                        bool parseSucceed = int.TryParse(field, NumberStyles.Any, CultureInfo.InvariantCulture, out columnIndex);
                        if (parseSucceed)
                        {
                            columnDataType = ((DataRowView)enumerator.Current).DataView.Table.Columns[columnIndex].DataType;
                            failed = false;
                        }
                        else
                        {
                            failed = true;
                        }
                    }

					if(failed)
					{
						throw(new ArgumentException(SR.ExceptionColumnNameNotFound(field)));
					}
					
				}
				else if(((DataRowView)enumerator.Current).DataView.Table.Columns.Count > 0)
				{
					columnDataType = ((DataRowView)enumerator.Current).DataView.Table.Columns[0].DataType;
				}
			}
			
			// If original object is DbDataRecord
			else if(enumerator.Current is DbDataRecord)
			{
				if(field != null && field.Length > 0)
				{
					bool	failed = true;
					int columnIndex = 0;
					if(!Char.IsNumber(field, 0))
					{
						columnIndex = ((DbDataRecord)enumerator.Current).GetOrdinal(field);
						columnDataType = ((DbDataRecord)enumerator.Current).GetFieldType(columnIndex);
						failed = false;
					}

					// Try to treat field as column number
                    if (failed)
                    {
                        failed = !int.TryParse(field, NumberStyles.Any, CultureInfo.InvariantCulture, out columnIndex);

                        if (!failed)
                        {
                            columnDataType = ((DbDataRecord)enumerator.Current).GetFieldType(columnIndex);
                        }
                    }

					if(failed)
					{
						throw(new ArgumentException(SR.ExceptionColumnNameNotFound(field)));
					}
					
				}
				else if(((DbDataRecord)enumerator.Current).FieldCount > 0)
				{
					columnDataType = ((DbDataRecord)enumerator.Current).GetFieldType(0);
				}
			}
			// Try detecting simple data types
			else
			{
                if (field != null && field.Length > 0)
                {
                    PropertyDescriptor descriptor = TypeDescriptor.GetProperties(enumerator.Current).Find(field, true);
                    if (descriptor != null)
                    {
                        columnDataType = descriptor.PropertyType;
                    }
                }
                if ( columnDataType == null )
                {
                    columnDataType = enumerator.Current.GetType();
                }
			}

			// Use data type
			if(columnDataType != null)
			{
				if(columnDataType == typeof(DateTime))
					type = ChartValueType.DateTime;
                else if (columnDataType == typeof(DateTimeOffset))
                    type = ChartValueType.DateTimeOffset;
                else if (columnDataType == typeof(TimeSpan))
                    type = ChartValueType.Time;
                else if (columnDataType == typeof(Double))
                    type = ChartValueType.Double;
                else if (columnDataType == typeof(Int32))
					type = ChartValueType.Int32;
				else if(columnDataType == typeof(Int64))
					type = ChartValueType.Int64;
				else if(columnDataType == typeof(Single))
					type = ChartValueType.Single;
				else if(columnDataType == typeof(String))
					type = ChartValueType.String;
				else if(columnDataType == typeof(UInt32))
					type = ChartValueType.UInt32;
				else if(columnDataType == typeof(UInt64))
					type = ChartValueType.UInt64;
			}

			return type;
		}

		#endregion

		#region DataPoint finding functions

        /// <summary>
        /// Find all the points that equal to the specified value starting from the specified index.
        /// </summary>
        /// <param name="valueToFind">Point value to find.</param>
        /// <param name="useValue">Which point value to use (X, Y1, Y2,...).</param>
        /// <param name="startIndex">Index of the point to start looking from.</param>
        /// <returns>Enumerator of datapoints.</returns>
        public IEnumerable<DataPoint> FindAllByValue(double valueToFind, string useValue, int startIndex)
        {
            // Loop through all points from specified index
            for (int i = startIndex; i < this.Count; i++)
            {
                DataPoint point = this[i];
                if (point.GetValueByName(useValue) == valueToFind)
                {
                    yield return point;
                }
            }
        }

        /// <summary>
        /// Find all the points that equal to the specified value.
        /// </summary>
        /// <param name="valueToFind">Point value to find.</param>
        /// <param name="useValue">Which point value to use (X, Y1, Y2,...).</param>
        /// <returns>Enumerator of datapoints.</returns>
        public IEnumerable<DataPoint> FindAllByValue(double valueToFind, string useValue)
        {
            // Loop through all points from specified index
            for (int i = 0; i < this.Count; i++)
            {
                DataPoint point = this[i];
                if (point.GetValueByName(useValue) == valueToFind)
                {
                    yield return point;
                }
            }
        }

        /// <summary>
        /// Find all the points that equal to the specified value.
        /// </summary>
        /// <param name="valueToFind">Point value to find.</param>
        /// <returns>Enumerator of datapoints.</returns>
        public IEnumerable<DataPoint> FindAllByValue(double valueToFind)
        {
            return FindAllByValue(valueToFind, "Y"); 
        }

		/// <summary>
		/// Find the first point that equals to the specified value starting from the specified index.
		/// </summary>
		/// <param name="valueToFind">Point value to find.</param>
		/// <param name="useValue">Which point value to use (X, Y1, Y2,...).</param>
		/// <param name="startIndex">Index of the point to start looking from.</param>
        /// <returns>Datapoint which matches the value.  Null if there is no match.</returns>
		public DataPoint FindByValue(double valueToFind, string useValue, int startIndex)
		{
            //Check arguments
            if (useValue == null)
                throw new ArgumentNullException("useValue");
            if (startIndex < 0 || startIndex >= this.Count)
                throw new ArgumentOutOfRangeException("startIndex");

			// Loop through all points from specified index
            for (int i = startIndex; i < this.Count; i++)
            {
                DataPoint point = this[i];
                if (point.GetValueByName(useValue) == valueToFind)
                {
                    return point;
                }
            }

			// Nothing was found
			return null;
		}

		/// <summary>
        /// Find the first point that equals to the specified value.
		/// </summary>
		/// <param name="valueToFind">Point value to find.</param>
		/// <param name="useValue">Which point value to use (X, Y1, Y2,...).</param>
        /// <returns>Datapoint which matches the value.  Null if there is no match.</returns>
		public DataPoint FindByValue(double valueToFind, string useValue)
		{
			return FindByValue(valueToFind, useValue, 0);
		}

		/// <summary>
        /// Find the first point that equals to the specified value.
		/// </summary>
		/// <param name="valueToFind">Point value to find.</param>
        /// <returns>Datapoint which matches the value.  Null if there is no match.</returns>
		public DataPoint FindByValue(double valueToFind)
		{
			return FindByValue(valueToFind, "Y");
		}

		/// <summary>
		/// Find point with the maximum value starting from specified index.
		/// </summary>
		/// <param name="useValue">Which point value to use (X, Y1, Y2,...).</param>
		/// <param name="startIndex">Index of the point to start looking from.</param>
        /// <returns>Datapoint with the maximum value.</returns>
        public DataPoint FindMaxByValue(string useValue, int startIndex)
		{
            //Check arguments
            if (useValue == null)
                throw new ArgumentNullException("useValue");
            if (startIndex < 0 || startIndex >= this.Count)
                throw new ArgumentOutOfRangeException("startIndex");

            bool isYValue = useValue.StartsWith("Y", StringComparison.OrdinalIgnoreCase);
            double		maxValue = double.MinValue;
            DataPoint   maxPoint = null;

            for (int i = startIndex; i < this.Count; i++)
			{
                DataPoint point = this[i];

                // Skip empty points when searching for the Y values
                if (point.IsEmpty && isYValue)
                    continue;

                double pointValue = point.GetValueByName(useValue);

			    if (maxValue < pointValue)
			    {
				    maxValue = pointValue;
                    maxPoint = point;
			    }
			}

			return maxPoint;
		}

		/// <summary>
        /// Find point with the maximum value.
        /// </summary>
		/// <param name="useValue">Which point value to use (X, Y1, Y2,...).</param>
        /// <returns>Datapoint with the maximum value.</returns>
		public DataPoint FindMaxByValue(string useValue)
		{
			return FindMaxByValue(useValue, 0);
		}

		/// <summary>
        /// Find data point with the maximum value.
        /// </summary>
       /// <returns>Datapoint with the maximum value.</returns>
		public DataPoint FindMaxByValue()
		{
            return FindMaxByValue("Y");
		}

        /// <summary>
        /// Find point with the Min value starting from specified index.
        /// </summary>
        /// <param name="useValue">Which point value to use (X, Y1, Y2,...).</param>
        /// <param name="startIndex">Index of the point to start looking from.</param>
        /// <returns>Datapoint with the Min value.</returns>
        public DataPoint FindMinByValue(string useValue, int startIndex)
		{
            if (useValue == null)
                throw new ArgumentNullException("useValue");
            if (startIndex < 0 || startIndex >= this.Count)
                throw new ArgumentOutOfRangeException("startIndex");

            bool isYValue = useValue.StartsWith("Y", StringComparison.OrdinalIgnoreCase);
            double minValue = double.MaxValue;
            DataPoint minPoint = null;

            for (int i = startIndex; i < this.Count; i++)
            {
                DataPoint point = this[i];

                // Skip empty points when searching for the Y values
                if (point.IsEmpty && isYValue)
                    continue;

                double pointValue = point.GetValueByName(useValue);

                if (minValue > pointValue)
                {
                    minValue = pointValue;
                    minPoint = point;
                }
            }

            return minPoint;
		}

        /// <summary>
        /// Find point with the Min value.
        /// </summary>
        /// <param name="useValue">Which point value to use (X, Y1, Y2,...).</param>
        /// <returns>Datapoint with the Min value.</returns>
		public DataPoint FindMinByValue(string useValue)
		{
			return FindMinByValue(useValue, 0);
		}

        /// <summary>
        /// Find point with the Min value
        /// </summary>
        /// <returns>Datapoint with the Min value.</returns>
		public DataPoint FindMinByValue()
		{
			return FindMinByValue("Y");
		}

		#endregion
        
        #region Collection<T> overrides

        /// <summary>
        /// Initializes the specified item.
        /// </summary>
        /// <param name="item">The item.</param>
        internal override void Initialize(DataPoint item)
        {
            DataPointInit(ref item);
            base.Initialize(item);
        }

        /// <summary>
        /// Removes all elements from the <see cref="T:System.Collections.ObjectModel.Collection`1"/>.
        /// </summary>
		protected override void  ClearItems()
        {

			// Refresh Minimum and Maximum from data
			// after recalc and set data			
            if (Common != null && Common.ChartPicture != null)
            {
                Common.ChartPicture.ResetMinMaxFromData();
            }

            base.ClearItems();
        }

        #endregion
    }

	/// <summary>
	/// Stores values and properties of a DataPoint of a Series.
	/// </summary>
	[
	SRDescription("DescriptionAttributeDataPoint_DataPoint"),
	DefaultProperty("YValues"),
    TypeConverter(typeof(DataPointConverter))
	]
    public class DataPoint : DataPointCustomProperties
	{
		#region Fields

		// Point X value
		private	double		_xValue;

		// Point Y values
		private	double[]	_yValue = new double[1];

		// Pre calculated (during painting) relative position of data point
		internal PointF		positionRel = PointF.Empty;

        // VSTS:199794 - Accessibility needs the last rendered label content to be exposed.
        // The current label content evaluation is scattered over different chart types and cannot be isolated without risk of regression.
        // This variable will cache the label content taken just before drawing.
        internal string _lastLabelText = String.Empty;

		#endregion

		#region Constructors

		/// <summary>
		/// DataPoint object constructor.
		/// </summary>
		public DataPoint() : base(null, true)
		{
			_yValue = new double[1];
		}

		/// <summary>
		/// DataPoint object constructor.
		/// </summary>
		/// <param name="series">series object, which the DataPoint belongs to.</param>
		public DataPoint(Series series) : base(series, true)
		{
			// Create Y value(s) array
			_yValue = new double[series.YValuesPerPoint];
			_xValue = 0;
		}

		/// <summary>
		/// DataPoint object constructor.
		/// </summary>
		/// <param name="xValue">X value.</param>
		/// <param name="yValue">Y value.</param>
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
            Justification = "X and Y are cartesian coordinates and well understood")]
        public DataPoint(double xValue, double yValue)
            : base(null, true)
		{
			// Set Y value
			this._yValue = new double[1];
			this._yValue[0] = yValue;

			// Set X value
			this._xValue = xValue;
		}

        /// <summary>
        /// DataPoint object constructor.
        /// </summary>
        /// <param name="xValue">X value.</param>
        /// <param name="yValues">Array of Y values.</param>
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
            Justification = "X and Y are cartesian coordinates and well understood")]
        public DataPoint(double xValue, double[] yValues)
            : base(null, true)
        {
            // Set Y value
            this._yValue = yValues;

            // Set X value
            this._xValue = xValue;
        }

        /// <summary>
        /// DataPoint object constructor.
        /// </summary>
        /// <remarks>
        /// This method is only used during the Windows Forms serialization of the chart.
        /// </remarks>
        /// <param name="xValue">X value.</param>
        /// <param name="yValues">String of comma separated Y values.</param>
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
            Justification = "X and Y are cartesian coordinates and well understood")]
        [EditorBrowsable(EditorBrowsableState.Never)]
        public DataPoint(double xValue, string yValues)
            : base(null, true)
        {
            string[] values = yValues.Split(',');

            // Create Y value(s) array
            _yValue = new double[values.Length];

            for (int index = 0; index < values.Length; index++)
            {
                _yValue[index] = CommonElements.ParseDouble(values[index], true);
            }

            // Set X value
            this._xValue = xValue;
        }

		#endregion

		#region Data point methods

        /// <summary>
        /// Sets the specified data point attribute to the specified value.
        /// </summary>
        /// <param name="obj">Attribute value.</param>
        /// <param name="propertyName">Attribute name.</param>
        /// <param name="format">Value format.</param>
		internal void SetPointCustomProperty(
			object obj, 
			string propertyName,
			string format)
		{
			// Convert value to string
			string	stringValue = obj as string;
			if(stringValue == null)
			{
				double doubleObj = double.NaN;
				ChartValueType valueType = ChartValueType.Auto;
				if(obj is DateTime)
				{
					doubleObj = ((DateTime)obj).ToOADate();
					valueType = ChartValueType.Date;
				}
				else 
				{
					doubleObj = this.ConvertValue(obj);
				}

				// Try converting to string
				if( !double.IsNaN(doubleObj) )
				{
					try
					{
						stringValue = ValueConverter.FormatValue(
							this.Chart,
							this,
                            this.Tag,
							doubleObj, 
							format, 
							valueType, 
							ChartElementType.DataPoint);
					}
					catch(FormatException)
					{
						// Use basic string converter
						stringValue = obj.ToString();
					}
				}
				else
				{
					// Use basic string converter
					stringValue = obj.ToString();
				}
			}
			
			// Assign data point attribute by name
			if(stringValue.Length > 0)
			{
				if(String.Compare(propertyName, "AxisLabel", StringComparison.OrdinalIgnoreCase) == 0)
				{
					this.AxisLabel = stringValue;
				}
                else if (String.Compare(propertyName, "Tooltip", StringComparison.OrdinalIgnoreCase) == 0)
				{
					this.ToolTip = stringValue;
				}
                else if (String.Compare(propertyName, "Label", StringComparison.OrdinalIgnoreCase) == 0)
				{
					this.Label = stringValue;
				}
                else if (String.Compare(propertyName, "LegendTooltip", StringComparison.OrdinalIgnoreCase) == 0)
				{
					this.LegendToolTip = stringValue;
				}
                else if (String.Compare(propertyName, "LegendText", StringComparison.OrdinalIgnoreCase) == 0)
				{
					this.LegendText = stringValue;
				}
                else if (String.Compare(propertyName, "LabelToolTip", StringComparison.OrdinalIgnoreCase) == 0)
				{
					this.LabelToolTip = stringValue;
				}
				else
				{
					this[propertyName] = stringValue;
				}
			}
		}


		/// <summary>
		/// Converts object to double.
		/// </summary>
		/// <param name="value">Object to convert.</param>
		/// <returns>Double value.</returns>
		private double ConvertValue(object value)
		{
			if(value == null)
			{
				return 0;
			}

			if(value is Double)
			{
				return (double)value;
			}
			else if(value is Single)
			{
				return (double)((float)value);
			}
			else if(value is Decimal)
			{
				return (double)((Decimal)value);
			}
			else if(value is Int32)
			{
				return (double)((Int32)value);
			}
			else if(value is UInt32)
			{
				return (double)((UInt32)value);
			}
			else if(value is Int64)
			{
				return (double)((Int64)value);
			}
			else if(value is UInt64)
			{
				return (double)((UInt64)value);
			}
			else if(value is Byte)
			{
				return (double)((Byte)value);
			}
			else if(value is SByte)
			{
				return (double)((SByte)value);
			}
			else if(value is Boolean)
			{
				return ((Boolean)value) ?  1.0 : 0.0;
			}
			else
			{
				string	stringValue = "";
				stringValue = value.ToString();
				return CommonElements.ParseDouble(stringValue);
			}
		}

		/// <summary>
		/// Set X value and one or more Y values of the data point.
		/// </summary>
		/// <param name="xValue">X value of the data point.</param>
		/// <param name="yValue">List of Y values of the data point.</param>
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
            Justification = "X and Y are cartesian coordinates and well understood")]
        public void SetValueXY(object xValue, params object[] yValue)
		{
            // Check arguments
            if (xValue == null)
                throw new ArgumentNullException("xValue");

			// Set Y value first
			SetValueY(yValue);

			// Check if parameters type matches with series type
			Type	paramType = xValue.GetType();
			if(base.series != null)
			{
				base.series.CheckSupportedTypes(paramType);
			}

			// Save value in the array
			if(paramType == typeof(String))
			{
				AxisLabel = (string)xValue;
			}
			else if(paramType == typeof(DateTime))
			{
				this._xValue = ((DateTime)xValue).ToOADate();
			}
			else 
			{
				this._xValue = ConvertValue(xValue);
			}

			// Get Date or Time if required
			if(base.series != null && xValue is DateTime)
			{
				if(base.series.XValueType == ChartValueType.Date)
				{
					DateTime time = new DateTime(
						((DateTime)xValue).Year, 
						((DateTime)xValue).Month, 
						((DateTime)xValue).Day, 
						0, 
						0, 
						0, 
						0);
					this._xValue = time.ToOADate();
				}
				else if(base.series.XValueType == ChartValueType.Time)
				{
					DateTime time = new DateTime(
						1899, 
						12, 
						30, 
						((DateTime)xValue).Hour, 
						((DateTime)xValue).Minute, 
						((DateTime)xValue).Second, 
						((DateTime)xValue).Millisecond);
					this._xValue = time.ToOADate();
				}
			}

			// Check if one of Y values are not avilable
			bool	empty = false;
			foreach(double d in this._yValue)
			{
				if(double.IsNaN(d))
				{
					empty = true;
					break;
				}
			}

			// Set point empty flag and values to zero
			if(empty)
			{
				this.IsEmpty = true;
				for(int valueIndex = 0; valueIndex < this._yValue.Length; valueIndex++)
				{
					this._yValue[valueIndex] = 0.0;
				}
			}
		}

		/// <summary>
		/// Set one or more Y values of the data point.
		/// </summary>
		/// <param name="yValue">List of Y values of the data point.</param>
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
            Justification = "Y is a cartesian coordinate and well understood")]
        public void SetValueY(params object[] yValue)
		{
            // Check arguments
            if (yValue == null)
                throw new ArgumentNullException("yValue");
            
            // Check number of parameters. Should be more than 0 and 
			if(yValue.Length == 0 || (base.series != null && yValue.Length > base.series.YValuesPerPoint))
				throw(new ArgumentOutOfRangeException("yValue", SR.ExceptionDataPointYValuesSettingCountMismatch(base.series.YValuesPerPoint.ToString(System.Globalization.CultureInfo.InvariantCulture))));

			// Check if there is a Null Y value
			for( int i = 0 ; i < yValue.Length ; i++ )
			{
				if(yValue[i] == null || yValue[i] is System.DBNull)
				{
					yValue[i] = 0.0;
					if(i == 0)
					{
						this.IsEmpty = true;
					}
				}
			}

			// Check if parameters type matches with series type
			Type	paramType = yValue[0].GetType();
			if(base.series != null)
			{
				base.series.CheckSupportedTypes(paramType);
			}

            // Make sure the Y values array is big enough
            if (this._yValue.Length < yValue.Length)
            {
                this._yValue = new double[yValue.Length];
            }

			// Save value in the array
			if(paramType == typeof(String))
			{
                try
                {
                    for (int i = 0; i < yValue.Length; i++)
                    {
                        this._yValue[i] = CommonElements.ParseDouble((string)yValue[i]);
                    }
                }
                catch
                {
                    // Get reference to the chart object
                    if (Common!=null && Common.ChartPicture!=null && Common.ChartPicture.SuppressExceptions)
                    {
                        this.IsEmpty = true;
                        for (int i = 0; i < yValue.Length; i++)
                        {
                            yValue[i] = 0.0;
                        }
                    }
                    else
                    {
                        throw (new ArgumentException( SR.ExceptionDataPointYValueStringFormat));
                    }
                }

			}
			else if(paramType == typeof(DateTime))
			{
				for( int i = 0 ; i < yValue.Length ; i++ )
				{
					if(yValue[i] == null || 
						(yValue[i] is double && ((double)yValue[i]) == 0.0) )
					{
						this._yValue[i] = DateTime.Now.ToOADate();
					}
					else
					{
						this._yValue[i] = ((DateTime)yValue[i]).ToOADate();
					}
				}
			}
			else 
			{
				for( int i = 0 ; i < yValue.Length ; i++ )
				{
					this._yValue[i] = ConvertValue(yValue[i]);
				}
			}

			// Get Date or Time if required
			if(base.series != null)
			{
				for( int i = 0 ; i < yValue.Length ; i++ )
				{
					if(yValue[i] == null || 
						(yValue[i] is double && ((double)yValue[i]) == 0.0) )
					{
						if(base.series.YValueType == ChartValueType.Date)
						{
							this._yValue[i] = Math.Floor(this._yValue[i]);
						}
						else if(base.series.YValueType == ChartValueType.Time)
						{
							this._yValue[i] = this._xValue - Math.Floor(this._yValue[i]);
						}
					}
					else
					{
						if(base.series.YValueType == ChartValueType.Date)
						{
							DateTime yDate;
							if (yValue[i] is DateTime)
								yDate = (DateTime)yValue[i];
							else if (yValue[i] is Double)
								yDate = DateTime.FromOADate((Double)yValue[i]);
							else
                                yDate = Convert.ToDateTime(yValue[i], CultureInfo.InvariantCulture); //This will throw an exception in case when the yValue type is not compatible with the DateTime

							DateTime date = new DateTime(
								yDate.Year, 
								yDate.Month, 
								yDate.Day, 
								0, 
								0, 
								0, 
								0);

							this._yValue[i] = date.ToOADate();
						}
						else if (base.series.YValueType == ChartValueType.Time)
						{
							DateTime yTime;
							if (yValue[i] is DateTime) 
								yTime = (DateTime)yValue[i];
							if (yValue[i] is Double)	
								yTime = DateTime.FromOADate((Double)yValue[i]);
							else
                                yTime = Convert.ToDateTime(yValue[i], CultureInfo.InvariantCulture); //This will throw an exception in case when the yValue type is not compatible with the DateTime

							DateTime time = new DateTime(
								1899, 
								12, 
								30, 
								yTime.Hour,
								yTime.Minute,
								yTime.Second,
								yTime.Millisecond);

							this._yValue[i] = time.ToOADate();
						}
					}
				}
			}

		}

		/// <summary>
		/// Creates an exact copy of this DataPoint object.
		/// </summary>
		/// <returns>An exact copy of this DataPoint object.</returns>
		public DataPoint Clone()
		{
			// Create new data point
			DataPoint	clonePoint = new DataPoint();

			// Reset series pointer
			clonePoint.series = null;
			clonePoint.pointCustomProperties = this.pointCustomProperties;
            
			// Copy values
			clonePoint._xValue = this.XValue;
			clonePoint._yValue = new double[this._yValue.Length];
			this._yValue.CopyTo(clonePoint._yValue, 0);
			clonePoint.tempColorIsSet = this.tempColorIsSet;
			clonePoint.isEmptyPoint = this.isEmptyPoint;

			// Copy properties
			foreach(object key in this.properties.Keys)
			{
				clonePoint.properties.Add(key, this.properties[key]);
			}

            return clonePoint;
		}

        /// <summary>
        /// Resize Y values array.
        /// </summary>
        /// <param name="newSize">New number of Y values in array.</param>
		internal void ResizeYValueArray(int newSize)
		{
			// Create new array
			double[]	newArray = new Double[newSize];

			// Copy elements
			if(_yValue != null)
			{
				for(int i = 0; i < ((_yValue.Length < newSize) ? _yValue.Length : newSize); i++)
				{
					newArray[i] = _yValue[i];
				}
			}

			_yValue = newArray;
		}

		/// <summary>
		/// Helper function, which returns point value by it's name.
		/// </summary>
		/// <param name="valueName">Point value names. X, Y, Y2,...</param>
		/// <returns>Point value.</returns>
		public double GetValueByName(string valueName)
		{
            // Check arguments
            if (valueName == null)
                throw new ArgumentNullException("valueName");

			valueName = valueName.ToUpper(System.Globalization.CultureInfo.InvariantCulture);
			if(String.Compare(valueName, "X", StringComparison.Ordinal) == 0)
			{
				return this.XValue;
			}
            else if (valueName.StartsWith("Y", StringComparison.Ordinal))

			{
				if(valueName.Length == 1)
				{
					return this.YValues[0];
				}
				else
				{
					int yIndex = 0;
					try
					{
						yIndex = Int32.Parse(valueName.Substring(1), System.Globalization.CultureInfo.InvariantCulture) - 1;
					}
					catch(System.Exception)
					{
						throw(new ArgumentException( SR.ExceptionDataPointValueNameInvalid, "valueName"));
					}

					if(yIndex < 0)
					{
						throw(new ArgumentException( SR.ExceptionDataPointValueNameYIndexIsNotPositive, "valueName"));
					}

					if(yIndex >= this.YValues.Length)
					{
						throw(new ArgumentException( SR.ExceptionDataPointValueNameYIndexOutOfRange, "valueName"));
					}

					return this.YValues[yIndex];
				}
			}
			else
			{
				throw(new ArgumentException( SR.ExceptionDataPointValueNameInvalid, "valueName"));
			}
		}

		/// <summary>
		/// Replaces predefined keyword inside the string with their values.
		/// </summary>
		/// <param name="strOriginal">Original string with keywords.</param>
		/// <returns>Modified string.</returns>
		internal override string ReplaceKeywords(string strOriginal)
		{
			// Nothing to process
			if(strOriginal == null || strOriginal.Length == 0)
				return strOriginal;

			// Replace all "\n" strings with '\n' character
			string result = strOriginal;
			result = result.Replace("\\n", "\n");

			// #LABEL - point label
			result = result.Replace(KeywordName.Label, this.Label);

			// #LEGENDTEXT - series name
			result = result.Replace(KeywordName.LegendText, this.LegendText);

			// #AXISLABEL - series name
			result = result.Replace(KeywordName.AxisLabel, this.AxisLabel);

            // #CUSTOMPROPERTY - one of the custom properties by name
            result = DataPoint.ReplaceCustomPropertyKeyword(result, this);
            
			if(this.series != null)
			{
				// #INDEX - point index
				result = result.Replace(KeywordName.Index, this.series.Points.IndexOf(this).ToString(System.Globalization.CultureInfo.InvariantCulture));

				// Replace series keywords
				result = this.series.ReplaceKeywords(result);

				// #PERCENT - percentage of Y value from total
				result = this.series.ReplaceOneKeyword(
					this.Chart,
					this,
                    this.Tag,
					ChartElementType.DataPoint,
					result, 
					KeywordName.Percent, 
					(this.YValues[0]/(this.series.GetTotalYValue())), 
					ChartValueType.Double, 
					"P");

				// #VAL[X] - point value X, Y, Y2, ...
				if(this.series.XValueType == ChartValueType.String)
				{
					result = result.Replace(KeywordName.ValX, this.AxisLabel);
				}
				else
				{
					result = this.series.ReplaceOneKeyword(
						this.Chart,
						this,
                        this.Tag,
						ChartElementType.DataPoint,
						result, 
						KeywordName.ValX, 
						this.XValue, 
						this.series.XValueType, 
						"");
				}
                
                // remove keywords #VAL? for unexisted Y value indices
                for (int index = this.YValues.Length; index <= 7; index++)
                {
                    result = this.RemoveOneKeyword(result, KeywordName.ValY + index + 1, SR.FormatErrorString);
                }

				for(int index = 1; index <= this.YValues.Length; index++)
				{
					result = this.series.ReplaceOneKeyword(
						this.Chart,
						this,
                        this.Tag,
						ChartElementType.DataPoint,
						result,
                        KeywordName.ValY + index, 
						this.YValues[index - 1], 
						this.series.YValueType, 
						"");
				}

				result = this.series.ReplaceOneKeyword(
					Chart,
					this,
                    this.Tag,
					ChartElementType.DataPoint,
					result,
                    KeywordName.ValY, 
					this.YValues[0], 
					this.series.YValueType, 
					"");

				result = this.series.ReplaceOneKeyword(
					Chart,
					this,
                    this.Tag,
					ChartElementType.DataPoint,
					result, 
					KeywordName.Val, 
					this.YValues[0], 
					this.series.YValueType, 
					"");
			}

			return result;
		}

        /// <summary>
        /// Removes one keyword from format string.
        /// </summary>
        /// <param name="strOriginal">Original format string</param>
        /// <param name="keyword">The keyword</param>
        /// <param name="strToReplace">String to replace the keyword.</param>
        /// <returns>Modified format string</returns>
        private string RemoveOneKeyword(string strOriginal, string keyword, string strToReplace)
        {
            string result = strOriginal;
            int keyIndex = -1;
            while ((keyIndex = result.IndexOf(keyword, StringComparison.Ordinal)) != -1)
            {
                // Get optional format
                int keyEndIndex = keyIndex + keyword.Length;
                if (result.Length > keyEndIndex && result[keyEndIndex] == '{')
                {
                    int formatEnd = result.IndexOf('}', keyEndIndex);
                    if (formatEnd == -1)
                    {
                        throw (new InvalidOperationException(SR.ExceptionDataSeriesKeywordFormatInvalid(result)));
                    }

                    keyEndIndex = formatEnd + 1;
                }
                // Remove keyword string (with optional format)
                result = result.Remove(keyIndex, keyEndIndex - keyIndex);
                if (!String.IsNullOrEmpty(strToReplace))
                {
                    result = result.Insert(keyIndex, strToReplace);
                }
            }
            return result;
        }


        /// <summary>
        /// Replaces all "#CUSTOMPROPERTY(XXX)" (where XXX is the custom attribute name) 
        /// keywords in the string provided. 
        /// </summary>
        /// <param name="originalString">String where the keyword need to be replaced.</param>
        /// <param name="properties">DataPoint or Series properties class.</param>
        /// <returns>Converted string.</returns>
        internal static string ReplaceCustomPropertyKeyword(string originalString, DataPointCustomProperties properties)
        {
            string result = originalString;
            int keyStartIndex = -1;
            while ((keyStartIndex = result.IndexOf(KeywordName.CustomProperty, StringComparison.Ordinal)) >= 0)
            {
                string attributeValue = string.Empty;
                string attributeName = string.Empty;

                // Forward to the end of the keyword
                int keyEndIndex = keyStartIndex + KeywordName.CustomProperty.Length;

                // An opening bracket '(' must follow
                if (result.Length > keyEndIndex && result[keyEndIndex] == '(')
                {
                    ++keyEndIndex;
                    int attributeNameStartIndex = keyEndIndex;

                    // Search for the closing bracket
                    int closingBracketIndex = result.IndexOf(')', keyEndIndex);
                    if (closingBracketIndex >= keyEndIndex)
                    {
                        keyEndIndex = closingBracketIndex + 1;
                        attributeName = result.Substring(attributeNameStartIndex, keyEndIndex - attributeNameStartIndex - 1);

                        // Get attribute value
                        if (properties.IsCustomPropertySet(attributeName))
                        {
                            attributeValue = properties.GetCustomProperty(attributeName);
                        }
                        else
                        {
                            // In case of the DataPoint check if the attribute is set in the parent series
                            DataPoint dataPoint = properties as DataPoint;
                            if (dataPoint != null && dataPoint.series != null)
                            {
                                if (dataPoint.series.IsCustomPropertySet(attributeName))
                                {
                                    attributeValue = dataPoint.series.GetCustomProperty(attributeName);
                                }
                            }
                        }
                    }
                }

                // Remove keyword string with attribute name
                result = result.Remove(keyStartIndex, keyEndIndex - keyStartIndex);

                // Insert value of the custom attribute
                result = result.Insert(keyStartIndex, attributeValue);
            }

            return result;
        }

        /// <summary>
        /// Returns a <see cref="T:System.String"/> that represents the current <see cref="T:System.Object"/>.
        /// </summary>
        /// <returns>
        /// A <see cref="T:System.String"/> that represents the current <see cref="T:System.Object"/>.
        /// </returns>
        internal override string ToStringInternal()
        {
            StringBuilder sb = new StringBuilder();
            sb.AppendFormat(CultureInfo.CurrentCulture, "{{X={0}, ", XValue);
            if (YValues.Length == 1)
            {
                sb.AppendFormat(CultureInfo.CurrentCulture, "Y={0}", YValues[0]);
            }
            else
            {
                sb.Append("Y={");
                for (int i = 0; i < YValues.Length; i++)
                    if (i == 0)
                        sb.AppendFormat(CultureInfo.CurrentCulture, "{0}", YValues[i]);
                    else
                        sb.AppendFormat(CultureInfo.CurrentCulture, ", {0}", YValues[i]);
                sb.Append("}");
            }
            sb.Append("}");
            return sb.ToString();
        }
        #endregion

        #region	DataPoint Properties


        /// <summary>
		/// X value of the data point.
		/// </summary>
		[
			SRCategory("CategoryAttributeData"),
			Bindable(true),
			SRDescription("DescriptionAttributeDataPoint_XValue"),
			TypeConverter(typeof(DataPointValueConverter)),
			DefaultValue(typeof(double), "0.0"),
			DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), 
		]
		public	double XValue
		{
			get
			{
				return _xValue;
			}
			set
			{
				_xValue = value;
				this.Invalidate(false);
                CallOnModifing();
            }
		}

		/// <summary>
		/// List of Y values of the data point.
		/// </summary>
		[
			SRCategory("CategoryAttributeData"),
			SRDescription("DescriptionAttributeDataPoint_YValues"),
			Bindable(true),
			DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), 
			TypeConverter(typeof(DoubleArrayConverter)),
#if DESIGNER
			Editor(typeof(UITypeEditor), typeof(UITypeEditor)),
#endif
			RefreshProperties(RefreshProperties.All),
			SerializationVisibilityAttribute(SerializationVisibility.Attribute)
		]
        [SuppressMessage("Microsoft.Performance", "CA1819:PropertiesShouldNotReturnArrays")]
		public	double[] YValues
		{
			get
			{
				return _yValue;
			}
			set
			{	
				if(value == null)
				{
					// Clear array data
					for(int i=0; i < _yValue.Length; i++)
					{
						_yValue[i] = 0;
					}
				}
				else
				{
					_yValue = value;
				}
				this.Invalidate(false);
                CallOnModifing();
            }
		}

		/// <summary>
		/// A flag which indicates whether the data point is empty.
		/// </summary>
		[
		SRCategory("CategoryAttributeData"),

        Bindable(true),
		SRDescription("DescriptionAttributeDataPoint_Empty"),
		DefaultValue(false)
		]
		public	bool IsEmpty
		{
			get
			{
				return base.isEmptyPoint;
			}
			set
			{
				base.isEmptyPoint = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}

		/// <summary>
		/// Name of the data point. This field is reserved for internal use only.
		/// </summary>
		[
		SRCategory("CategoryAttributeData"),
		Bindable(true),
		Browsable(false),
		SRDescription("DescriptionAttributeDataPoint_Name"),
		DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Hidden),
		SerializationVisibilityAttribute(SerializationVisibility.Hidden)
		]
		public override string Name
		{
			get
			{
                return "DataPoint";
			}
            set
            {
                //Dont call the base method - the names don't need to be unique
            }
		}

		#endregion

    }

	/// <summary>
	/// Stores properties of one Data Point and Data series.
	/// </summary>
	[
	SRDescription("DescriptionAttributeDataPointCustomProperties_DataPointCustomProperties"),
	DefaultProperty("LabelStyle"),
    TypeConverter(typeof(DataPointCustomPropertiesConverter))
    ]
	public class DataPointCustomProperties : ChartNamedElement
    {
        #region Fields and enumerations

		// True indicates data point properties. Otherwise - series.
		internal		bool			pointCustomProperties = true;

		// Reference to the data point series
		internal		Series			series = null;

		// Storage for the custom properties names/values
		internal		Hashtable	properties = new Hashtable();

		// Flag indicating that temp. color was set
		internal bool	tempColorIsSet = false;

		// Design time custom properties data
		internal CustomProperties customProperties = null;

		// IsEmpty point indicator
		internal bool	isEmptyPoint = false;

		#endregion

		#region Constructors

		/// <summary>
        /// DataPointCustomProperties constructor.
		/// </summary>
		public DataPointCustomProperties()
		{
			// Initialize the data series
			this.series = null;
			this.customProperties = new CustomProperties(this);
		}

        /// <summary>
        /// DataPointCustomProperties constructor.
        /// </summary>
        /// <param name="series">The series which the data point belongs to.</param>
        /// <param name="pointProperties">Indicates whether this is a data point custom properties.</param>
        public DataPointCustomProperties(Series series, bool pointProperties): base( series, String.Empty)
		{
			// Initialize the data series
			this.series = series;
            this.pointCustomProperties = pointProperties;
			this.customProperties = new CustomProperties(this);
		}

		#endregion

		#region Custom Properties methods

		/// <summary>
		/// Checks if custom property with specified name was set.
		/// </summary>
		/// <param name="name">Name of the custom property to check.</param>
		/// <returns>True if custom property was set.</returns>
		virtual public bool IsCustomPropertySet(string name)
		{
			return properties.ContainsKey(name);
		}

		/// <summary>
		/// Checks if the custom property with specified name was set.
		/// </summary>
        /// <param name="property">The CommonCustomProperties object to check for.</param>
		/// <returns>True if attribute was set.</returns>
        internal bool IsCustomPropertySet(CommonCustomProperties property)
		{
            return properties.ContainsKey((int)property);
		}

		/// <summary>
		/// Delete the data point custom property with the specified name.
		/// </summary>
		/// <param name="name">Name of the property to delete.</param>
		virtual public void DeleteCustomProperty(string name)
		{
			if(name == null) 
			{
                throw (new ArgumentNullException(SR.ExceptionAttributeNameIsEmpty));
			}

			// Check if trying to delete the common attribute
			string[] AttributesNames = CommonCustomProperties.GetNames(typeof(CommonCustomProperties));
			foreach(string commonName in AttributesNames)
			{
				if(name == commonName)
				{
					DeleteCustomProperty((CommonCustomProperties)Enum.Parse(typeof(CommonCustomProperties), commonName));
				}
			}

			// Remove attribute
			properties.Remove(name);
		}

        /// <summary>
        /// Delete Data Point attribute with specified name.
        /// </summary>
        /// <param name="property">ID of the attribute to delete.</param>
		internal void DeleteCustomProperty(CommonCustomProperties property)
		{
			// Check if trying to delete the common attribute from the series
			if(!this.pointCustomProperties)
			{
				throw(new ArgumentException( SR.ExceptionAttributeUnableToDelete));
			}

			// Remove attribute
			properties.Remove((int)property);
		}

		/// <summary>
        /// Gets the data point custom property with the specified name.
		/// </summary>
        /// <param name="name">Name of the property to get.</param>
        /// <returns>Returns the data point custom property with the specified name.  If the requested one is not set, 
        /// the default custom property of the data series will be returned.</returns>
		virtual public string GetCustomProperty(string name)
		{
			if(!IsCustomPropertySet(name) && this.pointCustomProperties)
			{
				// Check if we are in serialization mode
				bool	serializing = false;

				if(Chart != null && Chart.serializing)
				{
					serializing = true;
				}

				if(!serializing)
				{

					if(this.isEmptyPoint)
					{
						// Return empty point properties from series
						return (string)series.EmptyPointStyle.properties[name];
					}

					// Return properties from series
					return (string)series.properties[name];
				}
				else
				{
					// Return default properties
					return (string)Series.defaultCustomProperties[name];
				}
			}

			return (string)properties[name];
		}


		/// <summary>
		/// Checks if data is currently serialized.
		/// </summary>
		/// <returns>True if serialized.</returns>
		internal bool IsSerializing()
		{
			// Check if series object is provided
			if(series == null)
			{
				return true;
			}

			// Check if we are in serialization mode
			if(Chart != null)
			{
                return Chart.serializing;
            }
            else
            {
				return false;
			}
		}

		/// <summary>
		/// Returns an attribute object of the Data Point. If required attribute is not set
		/// in the Data Point the default attribute of the Data series is returned.
		/// </summary>
        /// <param name="attrib">Attribute name ID.</param>
		/// <returns>Attribute value.</returns>
		internal object GetAttributeObject(CommonCustomProperties attrib)
		{
			// Get series properties
			if(!this.pointCustomProperties || series == null)
			{
				return properties[(int)attrib];
			}

			// Get data point properties
			if(properties.Count == 0 || !IsCustomPropertySet(attrib))
			{
				// Check if we are in serialization mode
				bool	serializing = false;
				if(Chart != null)
				{
					serializing = Chart.serializing;
				}

				if(!serializing)
				{
					if(this.isEmptyPoint)
					{
						// Return empty point properties from series
						return series.EmptyPointStyle.properties[(int)attrib];
					}

					// Return properties from series
					return series.properties[(int)attrib];
				}
				else
				{
					// Return default properties
					return Series.defaultCustomProperties.properties[(int)attrib];
				}
			}
			return properties[(int)attrib];
		}

		/// <summary>
		/// Sets a custom property of the data point. 
		/// </summary>
		/// <param name="name">Property name.</param>
		/// <param name="propertyValue">Property value.</param>
		virtual public void SetCustomProperty(string name, string propertyValue)
		{
            properties[name] = propertyValue;
		}

		/// <summary>
		/// Sets an attribute of the Data Point as an object. 
		/// </summary>
        /// <param name="attrib">Attribute name ID.</param>
        /// <param name="attributeValue">Attribute new value.</param>
		internal void SetAttributeObject(CommonCustomProperties attrib, object attributeValue)
		{
			properties[(int)attrib] = attributeValue;
		}

		/// <summary>
		/// Set the default properties of the data point.
		/// <param name="clearAll">Indicates that previous properties must be cleared.</param>
		/// </summary>
		virtual public void SetDefault(bool clearAll)
		{
			// If setting defaults for the data series - clear all properties and initialize common one
			if(!this.pointCustomProperties)
			{
				if(clearAll)
				{
					properties.Clear();
				}

				// !!! IMPORTANT !!!
				// After changing the default value of the common attribute you must also
				// change the DefaultAttribute of the property representing this attribute.
				if(!IsCustomPropertySet(CommonCustomProperties.ToolTip))
					SetAttributeObject(CommonCustomProperties.ToolTip, "");
				if(!IsCustomPropertySet(CommonCustomProperties.LegendToolTip))
					SetAttributeObject(CommonCustomProperties.LegendToolTip, "");
				if(!IsCustomPropertySet(CommonCustomProperties.Color))
					SetAttributeObject(CommonCustomProperties.Color, Color.Empty);
				if(!IsCustomPropertySet(CommonCustomProperties.IsValueShownAsLabel))
					SetAttributeObject(CommonCustomProperties.IsValueShownAsLabel, false);
				if(!IsCustomPropertySet(CommonCustomProperties.MarkerStyle))
					SetAttributeObject(CommonCustomProperties.MarkerStyle, MarkerStyle.None);
				if(!IsCustomPropertySet(CommonCustomProperties.MarkerSize))
					SetAttributeObject(CommonCustomProperties.MarkerSize, 5);
				if(!IsCustomPropertySet(CommonCustomProperties.MarkerImage))
					SetAttributeObject(CommonCustomProperties.MarkerImage, "");
				if(!IsCustomPropertySet(CommonCustomProperties.Label))
					SetAttributeObject(CommonCustomProperties.Label, "");
				if(!IsCustomPropertySet(CommonCustomProperties.BorderWidth))
					SetAttributeObject(CommonCustomProperties.BorderWidth, 1);
				if(!IsCustomPropertySet(CommonCustomProperties.BorderDashStyle))
					SetAttributeObject(CommonCustomProperties.BorderDashStyle, ChartDashStyle.Solid);


				if(!IsCustomPropertySet(CommonCustomProperties.AxisLabel))
					SetAttributeObject(CommonCustomProperties.AxisLabel, "");
				if(!IsCustomPropertySet(CommonCustomProperties.LabelFormat))
					SetAttributeObject(CommonCustomProperties.LabelFormat, "");
				if(!IsCustomPropertySet(CommonCustomProperties.BorderColor))
					SetAttributeObject(CommonCustomProperties.BorderColor, Color.Empty);
				if(!IsCustomPropertySet(CommonCustomProperties.BackImage))
					SetAttributeObject(CommonCustomProperties.BackImage, "");
				if(!IsCustomPropertySet(CommonCustomProperties.BackImageWrapMode))
					SetAttributeObject(CommonCustomProperties.BackImageWrapMode, ChartImageWrapMode.Tile);
				if(!IsCustomPropertySet(CommonCustomProperties.BackImageAlignment))
					SetAttributeObject(CommonCustomProperties.BackImageAlignment, ChartImageAlignmentStyle.TopLeft);
				if(!IsCustomPropertySet(CommonCustomProperties.BackImageTransparentColor))
					SetAttributeObject(CommonCustomProperties.BackImageTransparentColor, Color.Empty);
				if(!IsCustomPropertySet(CommonCustomProperties.BackGradientStyle))
					SetAttributeObject(CommonCustomProperties.BackGradientStyle, GradientStyle.None);
				if(!IsCustomPropertySet(CommonCustomProperties.BackSecondaryColor))
					SetAttributeObject(CommonCustomProperties.BackSecondaryColor, Color.Empty);
				if(!IsCustomPropertySet(CommonCustomProperties.BackHatchStyle))
					SetAttributeObject(CommonCustomProperties.BackHatchStyle, ChartHatchStyle.None);
				if(!IsCustomPropertySet(CommonCustomProperties.Font))
					SetAttributeObject(CommonCustomProperties.Font, null);
				if(!IsCustomPropertySet(CommonCustomProperties.MarkerImageTransparentColor))
					SetAttributeObject(CommonCustomProperties.MarkerImageTransparentColor, Color.Empty);
				if(!IsCustomPropertySet(CommonCustomProperties.MarkerColor))
					SetAttributeObject(CommonCustomProperties.MarkerColor, Color.Empty);
				if(!IsCustomPropertySet(CommonCustomProperties.MarkerBorderColor))
					SetAttributeObject(CommonCustomProperties.MarkerBorderColor, Color.Empty);
				if(!IsCustomPropertySet(CommonCustomProperties.MarkerBorderWidth))
					SetAttributeObject(CommonCustomProperties.MarkerBorderWidth, 1);
				if(!IsCustomPropertySet(CommonCustomProperties.MapAreaAttributes))
					SetAttributeObject(CommonCustomProperties.MapAreaAttributes, "");
                if (!IsCustomPropertySet(CommonCustomProperties.PostBackValue))
                    SetAttributeObject(CommonCustomProperties.PostBackValue, "");

                if (!IsCustomPropertySet(CommonCustomProperties.LabelForeColor))
                    SetAttributeObject(CommonCustomProperties.LabelForeColor, Color.Black);
                if (!IsCustomPropertySet(CommonCustomProperties.LabelAngle))
                    SetAttributeObject(CommonCustomProperties.LabelAngle, 0);
                if (!IsCustomPropertySet(CommonCustomProperties.LabelToolTip))
					SetAttributeObject(CommonCustomProperties.LabelToolTip, "");
				if(!IsCustomPropertySet(CommonCustomProperties.LabelUrl))
					SetAttributeObject(CommonCustomProperties.LabelUrl, "");
                if (!IsCustomPropertySet(CommonCustomProperties.LabelPostBackValue))
                    SetAttributeObject(CommonCustomProperties.LabelPostBackValue, "");
                if (!IsCustomPropertySet(CommonCustomProperties.LabelMapAreaAttributes))
					SetAttributeObject(CommonCustomProperties.LabelMapAreaAttributes, "");
				if(!IsCustomPropertySet(CommonCustomProperties.LabelBackColor))
					SetAttributeObject(CommonCustomProperties.LabelBackColor, Color.Empty);
				if(!IsCustomPropertySet(CommonCustomProperties.LabelBorderWidth))
					SetAttributeObject(CommonCustomProperties.LabelBorderWidth, 1);
				if(!IsCustomPropertySet(CommonCustomProperties.LabelBorderDashStyle))
					SetAttributeObject(CommonCustomProperties.LabelBorderDashStyle, ChartDashStyle.Solid);
				if(!IsCustomPropertySet(CommonCustomProperties.LabelBorderColor))
					SetAttributeObject(CommonCustomProperties.LabelBorderColor, Color.Empty);

				if(!IsCustomPropertySet(CommonCustomProperties.Url))
					SetAttributeObject(CommonCustomProperties.Url, "");
				if(!IsCustomPropertySet(CommonCustomProperties.LegendUrl))
					SetAttributeObject(CommonCustomProperties.LegendUrl, "");
                if (!IsCustomPropertySet(CommonCustomProperties.LegendPostBackValue))
                    SetAttributeObject(CommonCustomProperties.LegendPostBackValue, "");
                if (!IsCustomPropertySet(CommonCustomProperties.LegendText))
					SetAttributeObject(CommonCustomProperties.LegendText, "");
				if(!IsCustomPropertySet(CommonCustomProperties.LegendMapAreaAttributes))
					SetAttributeObject(CommonCustomProperties.LegendMapAreaAttributes, "");
				if(!IsCustomPropertySet(CommonCustomProperties.IsVisibleInLegend))
					SetAttributeObject(CommonCustomProperties.IsVisibleInLegend, true);
			}

			// If setting defaults for the data point - clear all properties
			else
			{
				properties.Clear();
			}
		}

		#endregion

		#region	DataPointCustomProperties Properties

        /// <summary>
        /// Indexer of the custom properties. Returns the DataPointCustomProperties object by index.
        /// </summary>
        /// <param name="index">Index of the custom property.</param>
		public string this[int index]
		{
			get
			{
				int currentIndex = 0;
				foreach(object key in properties.Keys)
				{
					if(currentIndex == index)
					{
                        string keyStr = key as string;
                        if (keyStr != null)
                        {
                            return keyStr;
                        }
                        else if (key is int)
                        {
                            return Enum.GetName(typeof(CommonCustomProperties), key);
                        }
						return key.ToString();
					}
					++currentIndex;
				}
                // we can't throw IndexOutOfRangeException here, it is reserved
                // by the CLR.
                throw (new InvalidOperationException());
			}
		}

        /// <summary>
        /// Indexer of the custom properties. Returns the DataPointCustomProperties object by name.
        /// </summary>
        /// <param name="name">Name of the custom property.</param>
		public string this[string name]
		{
			get
			{
				// If attribute is not set in data point - try getting it from the series
				if(!IsCustomPropertySet(name) && this.pointCustomProperties)
				{
					if(this.isEmptyPoint)
					{
						return (string)series.EmptyPointStyle.properties[name];
					}

					return (string)series.properties[name];
				}
				return (string)properties[name];
			}
			set
			{
                properties[name] = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}

		/// <summary>
		/// The text of the data point label.
		/// </summary>
		[
#if DESIGNER
        Editor(typeof(KeywordsStringEditor), typeof(UITypeEditor)),
#endif
        SRCategory("CategoryAttributeLabel"),
		Bindable(true),
		SRDescription("DescriptionAttributeLabel"),
		]
		virtual public string Label
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.Label))
					{
						return (string)GetAttributeObject(CommonCustomProperties.Label);
					}
					else
					{
						if(IsSerializing())
						{
							return "";
						}
						if(this.isEmptyPoint)
						{
							return (string)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.Label);
						}

						return series.label;
					}
				}
				else
				{
					return series.label;
				}
			}
			set
			{
				// Replace NULL with empty string
				if(value == null)
				{
					value = string.Empty;
				}

                if (this.pointCustomProperties)
                    SetAttributeObject(CommonCustomProperties.Label, value);
                else
                    series.label = value;

				this.Invalidate(true);
                CallOnModifing();
            }
		}

		/// <summary>
        /// The text of X axis label for the data point.
		/// </summary>
		[
		SRCategory("CategoryAttributeMisc"),
		Bindable(true),
		SRDescription("DescriptionAttributeAxisLabel"),
#if DESIGNER
        Editor(typeof(KeywordsStringEditor), typeof(UITypeEditor)),
#endif
        ]
        virtual public string AxisLabel
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.AxisLabel))
					{
						return (string)GetAttributeObject(CommonCustomProperties.AxisLabel);
					}
					else
					{
						if(IsSerializing())
						{
							return "";
						}
						if(this.isEmptyPoint)
						{
							return (string)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.AxisLabel);
						}

						return series.axisLabel;

					}
				}
				else
				{
					return series.axisLabel;
				}
			}
			set
			{
				// Replace NULL with empty string
				if(value == null)
				{
					value = string.Empty;
				}

				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.AxisLabel, value);
				else
					series.axisLabel = value;

				// Set flag that there are non-empy axis labels in series or points
				if(value.Length > 0 && series != null)
				{
					series.noLabelsInPoints = false;
				}

				this.Invalidate(false);
                CallOnModifing();
            }
		}

		/// <summary>
		/// Format string of the data point label.
		/// </summary>
		[

		SRCategory("CategoryAttributeLabel"),
		Bindable(true),
		SRDescription("DescriptionAttributeLabelFormat")
		]
		public string LabelFormat
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.LabelFormat))
					{
						return (string)GetAttributeObject(CommonCustomProperties.LabelFormat);
					}
					else
					{
						if(IsSerializing())
						{
							return "";
						}
						if(this.isEmptyPoint)
						{
							return (string)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.LabelFormat);
						}

						return series.labelFormat;
					}
				}
				else
				{
					return series.labelFormat;
				}
			}
			set
			{
				// Replace NULL with empty string
				if(value == null)
				{
					value = string.Empty;
				}

				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.LabelFormat, value);
				else
					series.labelFormat = value;
				this.Invalidate(false);
                CallOnModifing();
            }
		}

		/// <summary>
		/// A flag which indicates whether to show the data point's value on the label.
		/// </summary>
		[

		SRCategory("CategoryAttributeLabel"),
		Bindable(true),
		SRDescription("DescriptionAttributeShowLabelAsValue")
		]
		public bool IsValueShownAsLabel
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.IsValueShownAsLabel))
					{
						return (bool)GetAttributeObject(CommonCustomProperties.IsValueShownAsLabel);
					}
					else
					{
						if(IsSerializing())
						{
							return false;
						}
						if(this.isEmptyPoint)
						{
							return (bool)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.IsValueShownAsLabel);
						}

						return series.showLabelAsValue;

					}
				}
				else
				{
					return series.showLabelAsValue;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.IsValueShownAsLabel, value);
				else
					series.showLabelAsValue = value;
				this.Invalidate(false);
                CallOnModifing();
            }
		}		

		/// <summary>
		/// Color of the data point.
		/// </summary>
		[
		SRCategory("CategoryAttributeAppearance"),
		Bindable(true),
		SRDescription("DescriptionAttributeColor4"),
        TypeConverter(typeof(ColorConverter)),
#if DESIGNER
        Editor(typeof(ChartColorEditor), typeof(UITypeEditor))
#endif
        ]
        public Color Color
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.Color))
					{
						return (Color)GetAttributeObject(CommonCustomProperties.Color);
					}
					else
					{
						if(IsSerializing())
						{
							return Color.Empty;
						}
						if(this.isEmptyPoint)
						{
							return (Color)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.Color);
						}

						return series.color;
					}
				}
				else
				{
					return series.color;
				}
			}
			set
			{
				// Remove the temp color flag
				this.tempColorIsSet = false;

				if(value == Color.Empty && this.pointCustomProperties)
				{
					DeleteCustomProperty(CommonCustomProperties.Color);
				}
				else
				{
					if(this.pointCustomProperties)
						SetAttributeObject(CommonCustomProperties.Color, value);
					else
						series.color = value;
					this.Invalidate(true);
                }
			}
		}

		/// <summary>
		/// Border color of the data point.
		/// </summary>
		[
		SRCategory("CategoryAttributeAppearance"),
		Bindable(true),
        SRDescription("DescriptionAttributeBorderColor"),
        TypeConverter(typeof(ColorConverter)),
#if DESIGNER
        Editor(typeof(ChartColorEditor), typeof(UITypeEditor))
#endif
        ]
        public Color BorderColor
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.BorderColor))
					{
						return (Color)GetAttributeObject(CommonCustomProperties.BorderColor);
					}
					else
					{
						if(IsSerializing())
						{
							return Color.Empty;
						}
						if(this.isEmptyPoint)
						{
							return (Color)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.BorderColor);
						}

						return series.borderColor;
					}
				}
				else
				{
					return series.borderColor;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.BorderColor, value);
				else
					series.borderColor = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}

		/// <summary>
		/// Border style of the data point.
		/// </summary>
		[
		SRCategory("CategoryAttributeAppearance"),
		Bindable(true),
        SRDescription("DescriptionAttributeBorderDashStyle")
		]
		public ChartDashStyle BorderDashStyle
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.BorderDashStyle))
					{
						return (ChartDashStyle)GetAttributeObject(CommonCustomProperties.BorderDashStyle);
					}
					else
					{
						if(IsSerializing())
						{
							return ChartDashStyle.Solid;
						}
						if(this.isEmptyPoint)
						{
							return (ChartDashStyle)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.BorderDashStyle);
						}

						return series.borderDashStyle;

					}
				}
				else
				{
					return series.borderDashStyle;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.BorderDashStyle, value);
				else
					series.borderDashStyle = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}

		/// <summary>
		/// Border width of the data point.
		/// </summary>
		[
		SRCategory("CategoryAttributeAppearance"),
		Bindable(true),
        SRDescription("DescriptionAttributeBorderWidth"),
		]
		public int BorderWidth
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.BorderWidth))
					{
						return (int)GetAttributeObject(CommonCustomProperties.BorderWidth);
					}
					else
					{
						if(IsSerializing())
						{
							return 1;
						}
						if(this.isEmptyPoint)
						{
							return (int)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.BorderWidth);
						}

						return series.borderWidth;

					}
				}
				else
				{
					return series.borderWidth;
				}
			}
			set
			{
				if(value < 0)
				{
                    throw (new ArgumentOutOfRangeException("value", SR.ExceptionBorderWidthIsNotPositive));
				}
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.BorderWidth, value);
				else
					series.borderWidth = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}
		
		/// <summary>
		/// Background image of the data point.
		/// </summary>
		[
		SRCategory("CategoryAttributeAppearance"),
		Bindable(true),
        SRDescription("DescriptionAttributeBackImage"),
#if DESIGNER
        Editor(typeof(ImageValueEditor), typeof(UITypeEditor)),
#endif
        ]
        public string BackImage
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.BackImage))
					{
						return (string)GetAttributeObject(CommonCustomProperties.BackImage);
					}
					else
					{
						if(IsSerializing())
						{
							return "";
						}
						if(this.isEmptyPoint)
						{
							return (string)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.BackImage);
						}

						return series.backImage;

					}
				}
				else
				{
					return series.backImage;
				}
			}
			set
			{
				// Replace NULL with empty string
				if(value == null)
				{
					value = string.Empty;
				}

				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.BackImage, value);
				else 
					series.backImage = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}

        /// <summary>
        /// Gets or sets the drawing mode of the background image.
        /// </summary>
        /// <value>
        /// A <see cref="ChartImageWrapMode"/> value that defines the drawing mode of the image. 
        /// </value>
		[
		SRCategory("CategoryAttributeAppearance"),
		Bindable(true),
        SRDescription("DescriptionAttributeImageWrapMode")
		]
		public ChartImageWrapMode BackImageWrapMode
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.BackImageWrapMode))
					{
						return (ChartImageWrapMode)GetAttributeObject(CommonCustomProperties.BackImageWrapMode);
					}
					else
					{
						if(IsSerializing())
						{
							return ChartImageWrapMode.Tile;
						}
						if(this.isEmptyPoint)
						{
							return (ChartImageWrapMode)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.BackImageWrapMode);
						}

						return series.backImageWrapMode;

					}
				}
				else
				{
					return series.backImageWrapMode;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.BackImageWrapMode, value);
				else 
					series.backImageWrapMode = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}

        /// <summary>
        /// Gets or sets a color which will be replaced with a transparent color while drawing the background image.
        /// </summary>
        /// <value>
        /// A <see cref="Color"/> value which will be replaced with a transparent color while drawing the image.
        /// </value>
		[
		SRCategory("CategoryAttributeAppearance"),
		Bindable(true),
		NotifyParentPropertyAttribute(true),
        SRDescription("DescriptionAttributeImageTransparentColor"),
        TypeConverter(typeof(ColorConverter)),
#if DESIGNER
        Editor(typeof(ChartColorEditor), typeof(UITypeEditor))
#endif
        ]
        public Color BackImageTransparentColor
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.BackImageTransparentColor))
					{
						return (Color)GetAttributeObject(CommonCustomProperties.BackImageTransparentColor);
					}
					else
					{
						if(IsSerializing())
						{
							return Color.Empty;
						}
						if(this.isEmptyPoint)
						{
							return (Color)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.BackImageTransparentColor);
						}

						return series.backImageTransparentColor;

					}
				}
				else
				{
					return series.backImageTransparentColor;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.BackImageTransparentColor, value);
				else 
					series.backImageTransparentColor = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}

		/// <summary>
        	/// Gets or sets the alignment of the background image which is used by ClampUnscale drawing mode.
		/// </summary>
		[
		SRCategory("CategoryAttributeAppearance"),
		Bindable(true),
		NotifyParentPropertyAttribute(true),
        SRDescription("DescriptionAttributeBackImageAlign")
		]
		public ChartImageAlignmentStyle BackImageAlignment
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.BackImageAlignment))
					{
						return (ChartImageAlignmentStyle)GetAttributeObject(CommonCustomProperties.BackImageAlignment);
					}
					else
					{
						if(IsSerializing())
						{
							return ChartImageAlignmentStyle.TopLeft;
						}
						if(this.isEmptyPoint)
						{
							return (ChartImageAlignmentStyle)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.BackImageAlignment);
						}

						return series.backImageAlignment;

					}
				}
				else
				{
					return series.backImageAlignment;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.BackImageAlignment, value);
				else 
					series.backImageAlignment = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}

        /// <summary>
        /// Gets or sets the background gradient style.
        /// </summary>
		[
		SRCategory("CategoryAttributeAppearance"),
		Bindable(true),
        SRDescription("DescriptionAttributeBackGradientStyle"),
#if DESIGNER
        Editor(typeof(GradientEditor), typeof(UITypeEditor))
#endif
        ]
        public GradientStyle BackGradientStyle
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.BackGradientStyle))
					{
						return (GradientStyle)GetAttributeObject(CommonCustomProperties.BackGradientStyle);
					}
					else
					{
						if(IsSerializing())
						{
							return GradientStyle.None;
						}
						if(this.isEmptyPoint)
						{
							return (GradientStyle)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.BackGradientStyle);
						}

						return series.backGradientStyle;

					}
				}
				else
				{
					return series.backGradientStyle;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.BackGradientStyle, value);
				else 
					series.backGradientStyle = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}

        /// <summary>
        /// Gets or sets the secondary background color.
        /// </summary>
		[
		SRCategory("CategoryAttributeAppearance"),
		Bindable(true),
        SRDescription("DescriptionAttributeBackSecondaryColor"),
        TypeConverter(typeof(ColorConverter)),
#if DESIGNER
        Editor(typeof(ChartColorEditor), typeof(UITypeEditor))
#endif
        ]
        public Color BackSecondaryColor
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.BackSecondaryColor))
					{
						return (Color)GetAttributeObject(CommonCustomProperties.BackSecondaryColor);
					}
					else
					{
						if(IsSerializing())
						{
							return Color.Empty;
						}
						if(this.isEmptyPoint)
						{
							return (Color)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.BackSecondaryColor);
						}

						return series.backSecondaryColor;

					}
				}
				else
				{
					return series.backSecondaryColor;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.BackSecondaryColor, value);
				else 
					series.backSecondaryColor = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}

        /// <summary>
        /// Gets or sets the background hatch style.
        /// </summary>
		[
		SRCategory("CategoryAttributeAppearance"),
		Bindable(true),
        SRDescription("DescriptionAttributeBackHatchStyle"),
#if DESIGNER
        Editor(typeof(HatchStyleEditor), typeof(UITypeEditor))
#endif
        ]
        public ChartHatchStyle BackHatchStyle
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.BackHatchStyle))
					{
						return (ChartHatchStyle)GetAttributeObject(CommonCustomProperties.BackHatchStyle);
					}
					else
					{
						if(IsSerializing())
						{
							return ChartHatchStyle.None;
						}
						if(this.isEmptyPoint)
						{
							return (ChartHatchStyle)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.BackHatchStyle);
						}

						return series.backHatchStyle;

					}
				}
				else
				{
					return series.backHatchStyle;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.BackHatchStyle, value);
				else 
					series.backHatchStyle = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}

		/// <summary>
		/// Gets or sets the font of the data point.
		/// </summary>
		[
		SRCategory("CategoryAttributeLabelAppearance"),
		Bindable(true),
		SRDescription("DescriptionAttributeFont")
		]
		public Font Font
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.Font))
					{
                        Font font = GetAttributeObject(CommonCustomProperties.Font) as Font;
                        if (font != null)
                            return font;
					}

                    if(IsSerializing())
					{
						return series.FontCache.DefaultFont;
					}
					
                    if(this.isEmptyPoint)
					{
						return series.EmptyPointStyle.Font;
					}

					return series.font;
				}
				else
				{
					return series.font;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.Font, value);
				else 
					series.font = value;
				this.Invalidate(false);
                CallOnModifing();
			}
		}

		/// <summary>
		/// Gets or sets the label color.
		/// </summary>
		[
		SRCategory("CategoryAttributeLabelAppearance"),
		Bindable(true),
		SRDescription("DescriptionAttributeFontColor"),
        TypeConverter(typeof(ColorConverter)),
#if DESIGNER
        Editor(typeof(ChartColorEditor), typeof(UITypeEditor))
#endif
        ]
        public Color LabelForeColor
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.LabelForeColor))
					{
						Color color =  (Color)GetAttributeObject(CommonCustomProperties.LabelForeColor);
						return color;
					}
					else
					{
						if(IsSerializing())
						{
							return Color.Black;
						}
						if(this.isEmptyPoint)
						{
							return (Color)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.LabelForeColor);
						}
						if(SystemInformation.HighContrast)
						{
							return SystemColors.WindowText;
						}

						return series.fontColor;

					}
				}
				else
				{
					return series.fontColor;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.LabelForeColor, value);
				else 
					series.fontColor = value;
				this.Invalidate(false);
                CallOnModifing();
            }
		}

		/// <summary>
		/// Gets or sets the angle of the label.
		/// </summary>
		[
		SRCategory("CategoryAttributeLabelAppearance"),
		Bindable(true),
		SRDescription(SR.Keys.DescriptionAttributeLabel_FontAngle)
		]
		public int LabelAngle
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.LabelAngle))
					{
						return (int)GetAttributeObject(CommonCustomProperties.LabelAngle);
					}
					else
					{
						if(IsSerializing())
						{
							return 0;
						}
						if(this.isEmptyPoint)
						{
							return (int)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.LabelAngle);
						}

						return series.fontAngle;

					}
				}
				else
				{
					return series.fontAngle;
				}
			}
			set
			{
				if(value < -90 || value > 90)
				{
                    throw (new ArgumentOutOfRangeException("value", SR.ExceptionAngleRangeInvalid));
				}
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.LabelAngle, value);
				else 
					series.fontAngle = value;
				this.Invalidate(false);
                CallOnModifing();
            }
		}

		/// <summary>
		/// Gets or sets the marker style.
		/// </summary>
		[
		SRCategory("CategoryAttributeMarker"),
		Bindable(true),
		SRDescription("DescriptionAttributeMarkerStyle4"),
#if DESIGNER
        Editor(typeof(MarkerStyleEditor), typeof(UITypeEditor)),
#endif
        RefreshProperties(RefreshProperties.All)
		]
		public MarkerStyle MarkerStyle
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.MarkerStyle))
					{
						return (MarkerStyle)GetAttributeObject(CommonCustomProperties.MarkerStyle);
					}
					else
					{
						if(IsSerializing())
						{
							return MarkerStyle.None;
						}
						if(this.isEmptyPoint)
						{
							return (MarkerStyle)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.MarkerStyle);
						}

						return series.markerStyle;

					}
				}
				else
				{
					return series.markerStyle;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.MarkerStyle, value);
				else 
					series.markerStyle = value;

                Series thisSeries = this as Series;
				if(thisSeries != null)
				{
                    thisSeries.tempMarkerStyleIsSet = false;
				}
				this.Invalidate(true);
                CallOnModifing();
            }
		}

		/// <summary>
		/// Gets or sets the size of the marker.
		/// </summary>
		[
		SRCategory("CategoryAttributeMarker"),
		Bindable(true),
		SRDescription("DescriptionAttributeMarkerSize"),
		RefreshProperties(RefreshProperties.All)
		]
		public int MarkerSize
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.MarkerSize))
					{
						return (int)GetAttributeObject(CommonCustomProperties.MarkerSize);
					}
					else
					{
						if(IsSerializing())
						{
							return 5;
						}
						if(this.isEmptyPoint)
						{
							return (int)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.MarkerSize);
						}

						return series.markerSize;

					}
				}
				else
				{
					return series.markerSize;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.MarkerSize, value);
				else 
					series.markerSize = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}

		/// <summary>
		/// Gets or sets the marker image.
		/// </summary>
		[
		SRCategory("CategoryAttributeMarker"),
		Bindable(true),
        SRDescription("DescriptionAttributeMarkerImage"),
#if DESIGNER
        Editor(typeof(ImageValueEditor), typeof(UITypeEditor)),
#endif
        RefreshProperties(RefreshProperties.All)
		]
		public string MarkerImage
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.MarkerImage))
					{
						return (string)GetAttributeObject(CommonCustomProperties.MarkerImage);
					}
					else
					{
						if(IsSerializing())
						{
							return "";
						}
						if(this.isEmptyPoint)
						{
							return (string)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.MarkerImage);
						}

						return series.markerImage;

					}
				}
				else
				{
					return series.markerImage;
				}
			}
			set
			{
				// Replace NULL with empty string
				if(value == null)
				{
					value = string.Empty;
				}

				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.MarkerImage, value);
				else 
					series.markerImage = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}

		/// <summary>
        /// Gets or sets the color which will be replaced with a transparent color while drawing the marker image.
		/// </summary>
		[
		SRCategory("CategoryAttributeMarker"),
		Bindable(true),
        SRDescription("DescriptionAttributeImageTransparentColor"),
        TypeConverter(typeof(ColorConverter)),
#if DESIGNER
        Editor(typeof(ChartColorEditor), typeof(UITypeEditor)),
#endif
        RefreshProperties(RefreshProperties.All)
		]
		public Color MarkerImageTransparentColor
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.MarkerImageTransparentColor))
					{
						return (Color)GetAttributeObject(CommonCustomProperties.MarkerImageTransparentColor);
					}
					else
					{
						if(IsSerializing())
						{
							return Color.Empty;
						}
						if(this.isEmptyPoint)
						{
							return (Color)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.MarkerImageTransparentColor);
						}

						return series.markerImageTransparentColor;

					}
				}
				else
				{
					return series.markerImageTransparentColor;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.MarkerImageTransparentColor, value);
				else 
					series.markerImageTransparentColor = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}
		
		/// <summary>
        /// Gets or sets the marker color.
		/// </summary>
		[
		SRCategory("CategoryAttributeMarker"),
		Bindable(true),
		SRDescription("DescriptionAttributeMarkerColor3"),
        TypeConverter(typeof(ColorConverter)),
#if DESIGNER
        Editor(typeof(ChartColorEditor), typeof(UITypeEditor)),
#endif
        RefreshProperties(RefreshProperties.All)
		]
		public Color MarkerColor
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.MarkerColor))
					{
						return (Color)GetAttributeObject(CommonCustomProperties.MarkerColor);
					}
					else
					{
						if(IsSerializing())
						{
							return Color.Empty;
						}
						if(this.isEmptyPoint)
						{
							return (Color)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.MarkerColor);
						}

						return series.markerColor;

					}
				}
				else
				{
					return series.markerColor;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.MarkerColor, value);
				else 
					series.markerColor = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}
		
		/// <summary>
        /// Gets or sets the border color of the marker.
		/// </summary>
		[
		SRCategory("CategoryAttributeMarker"),
		Bindable(true),
		SRDescription("DescriptionAttributeMarkerBorderColor"),
        TypeConverter(typeof(ColorConverter)),
#if DESIGNER
        Editor(typeof(ChartColorEditor), typeof(UITypeEditor)),
#endif
        RefreshProperties(RefreshProperties.All)
		]
		public Color MarkerBorderColor
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.MarkerBorderColor))
					{
						return (Color)GetAttributeObject(CommonCustomProperties.MarkerBorderColor);
					}
					else
					{
						if(IsSerializing())
						{
							return Color.Empty;
						}
						if(this.isEmptyPoint)
						{
							return (Color)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.MarkerBorderColor);
						}

						return series.markerBorderColor;

					}
				}
				else
				{
					return series.markerBorderColor;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.MarkerBorderColor, value);
				else 
					series.markerBorderColor = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}



		/// <summary>
        /// Gets or sets the border width of the marker.
		/// </summary>
		[

		SRCategory("CategoryAttributeMarker"),
		Bindable(true),
        SRDescription("DescriptionAttributeMarkerBorderWidth")
		]
		public int MarkerBorderWidth
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.MarkerBorderWidth))
					{
						return (int)GetAttributeObject(CommonCustomProperties.MarkerBorderWidth);
					}
					else
					{
						if(IsSerializing())
						{
							return 1;
						}
						if(this.isEmptyPoint)
						{
							return (int)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.MarkerBorderWidth);
						}

						return series.markerBorderWidth;

					}
				}
				else
				{
					return series.markerBorderWidth;
				}
			}
			set
			{
				if(value < 0)
				{
                    throw (new ArgumentOutOfRangeException("value", SR.ExceptionBorderWidthIsNotPositive));
				}
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.MarkerBorderWidth, value);
				else
					series.markerBorderWidth = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}



		/// <summary>
        /// Gets or sets the extended custom properties of the data point.
		/// Extended custom properties can be specified in the following format: 
        /// AttrName1=Value1, AttrName2=Value2, ...  
		/// </summary>
		[
		SRCategory("CategoryAttributeMisc"),
		Bindable(false),
		SRDescription("DescriptionAttributeCustomAttributesExtended"),
		DefaultValue(null),
		RefreshProperties(RefreshProperties.All),
		NotifyParentPropertyAttribute(true),
		DesignOnlyAttribute(true),
		DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden),
		SerializationVisibilityAttribute(SerializationVisibility.Hidden),
		EditorBrowsableAttribute(EditorBrowsableState.Never),
        DisplayName("CustomProperties")
		]
		public CustomProperties CustomPropertiesExtended
		{
			set
			{
				customProperties = value;
                CallOnModifing();
            }
			get
			{
				return customProperties;
			}
		}

		/// <summary>
        /// Gets or sets the custom properties of the data point.
        /// Custom properties can be specified in the following format: 
        /// AttrName1=Value1, AttrName2=Value2, ...  
		/// </summary>
		[
		SRCategory("CategoryAttributeMisc"),
		Bindable(true),
		Browsable(false),
		SRDescription("DescriptionAttributeCustomAttributesExtended"),
		DefaultValue("")
		]
		public string CustomProperties
		{
			get
			{
				// Save all custom properties in a string
				string	result = "";
				string[] attributesNames = CommonCustomProperties.GetNames(typeof(CommonCustomProperties));
				for(int i = properties.Count - 1; i >= 0; i--)
				{
					if(this[i] != null)
					{
						string	attributeName = this[i];

						// Check if attribute is custom
						bool	customAttribute = true;
						foreach(string name in attributesNames)
						{
							if(String.Compare(attributeName, name, StringComparison.OrdinalIgnoreCase) == 0)
							{
								customAttribute = false;
								break;
							}
						}

						// Add custom attribute to the string
						if(customAttribute && properties[attributeName] != null)
						{
							if(result.Length > 0)
							{
								result += ", ";
							}
                            string attributeValue = properties[attributeName].ToString().Replace(",", "\\,");
                            attributeValue = attributeValue.Replace("=", "\\=");

                            result += attributeName + "=" + attributeValue;
						}
					}
				}

				return result;
			}
			set
			{
				// Replace NULL with empty string
				if(value == null)
				{
					value = string.Empty;
				}

				// Copy all common properties to the new collection
				Hashtable	newAttributes = new Hashtable();
				Array enumValues = Enum.GetValues(typeof(CommonCustomProperties));
				foreach(object val in enumValues)
				{
					if(IsCustomPropertySet((CommonCustomProperties)val))
					{
						newAttributes[(int)val] = properties[(int)val];
					}
				}
	
				if(value.Length > 0)
				{
					// Replace commas in value string
					value = value.Replace("\\,", "\\x45");
					value = value.Replace("\\=", "\\x46");

					// Add new custom properties
					string[]	nameValueStrings = value.Split(',');
					foreach(string nameValue in nameValueStrings)
					{
						string[] values = nameValue.Split('=');

						// Check format
						if(values.Length != 2)
						{
							throw(new FormatException( SR.ExceptionAttributeInvalidFormat));
						}
						
						// Check for empty name or value
						values[0] = values[0].Trim();
						values[1] = values[1].Trim();
						if(values[0].Length == 0)
						{
							throw(new FormatException( SR.ExceptionAttributeInvalidFormat));
						}

						// Check if value already defined
						foreach(object existingAttributeName in newAttributes.Keys)
						{
                            string existingAttributeNameStr = existingAttributeName as string;
                            if (existingAttributeNameStr != null)
							{
                                if (String.Compare(existingAttributeNameStr, values[0], StringComparison.OrdinalIgnoreCase) == 0)
								{
									throw(new FormatException( SR.ExceptionAttributeNameIsNotUnique(values[0] ) ) );
								}
							}
						}
					
						string newValue = values[1].Replace("\\x45", ",");
						newAttributes[values[0]] = newValue.Replace("\\x46", "=");
						
					}
				}
				properties = newAttributes;
				this.Invalidate(true);
			}
		}

		#endregion

		#region	IMapAreaAttributesutes Properties implementation

		/// <summary>
		/// Tooltip.
		/// </summary>
		[
		SRCategory("CategoryAttributeMapArea"),
		Bindable(true),
        SRDescription("DescriptionAttributeToolTip"),
#if DESIGNER
        Editor(typeof(KeywordsStringEditor), typeof(UITypeEditor)),
#endif
        ]
        public string ToolTip
		{
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.ToolTip, value);
				else 
					series.toolTip = value;
				
				if(Chart != null && Chart.selection != null)
				{
					Chart.selection.enabledChecked = false;
				}
			}
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.ToolTip))
					{
						return (String)GetAttributeObject(CommonCustomProperties.ToolTip);
					}
					else
					{
						if(IsSerializing())
						{
							return "";
						}
						if(this.isEmptyPoint)
						{
							return (string)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.ToolTip);
						}

						return series.toolTip;

					}
				}
				else
				{
					return series.toolTip;
				}
			}
		}

        /// <summary>
        /// Replaces predefined keyword inside the string with their values.
        /// </summary>
        /// <param name="strOriginal">Original string with keywords.</param>
        /// <returns>Modified string.</returns>
        internal virtual string ReplaceKeywords(string strOriginal)
        {
            return strOriginal;
        }

        #endregion

        #region	Legend properties

        /// <summary>
		/// Indicates whether the item is shown in the legend.
		/// </summary>
		[
		SRCategory("CategoryAttributeLegend"),
		Bindable(true),
		SRDescription("DescriptionAttributeShowInLegend")
		]
		public bool IsVisibleInLegend
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.IsVisibleInLegend))
					{
						return (bool)GetAttributeObject(CommonCustomProperties.IsVisibleInLegend);
					}
					else
					{
						if(IsSerializing())
						{
							return true;
						}
						if(this.isEmptyPoint)
						{
							return (bool)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.IsVisibleInLegend);
						}

						return series.showInLegend;
					}
				}
				else
				{
					return series.showInLegend;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.IsVisibleInLegend, value);
				else 
					series.showInLegend = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}		

		/// <summary>
		/// Text of the item in the legend
		/// </summary>
		[
		SRCategory("CategoryAttributeLegend"),
		Bindable(true),
		SRDescription("DescriptionAttributeLegendText"),
#if DESIGNER
        Editor(typeof(KeywordsStringEditor), typeof(UITypeEditor)),
#endif
        ]
        public string LegendText
		{
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.LegendText, value);
				else 
					series.legendText = value;
				this.Invalidate(true);
                CallOnModifing();
            }
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.LegendText))
					{
						return (String)GetAttributeObject(CommonCustomProperties.LegendText);
					}
					else
					{
						if(IsSerializing())
						{
							return "";
						}
						if(this.isEmptyPoint)
						{
							return (string)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.LegendText);
						}

						return series.legendText;
					}
				}
				else
				{
					return series.legendText;
				}
			}
		}

		/// <summary>
		/// Tooltip of the item in the legend
		/// </summary>
		[
		SRCategory("CategoryAttributeLegend"),
		Bindable(true),
		SRDescription("DescriptionAttributeLegendToolTip"),
#if DESIGNER
        Editor(typeof(KeywordsStringEditor), typeof(UITypeEditor)),
#endif
        ]
        public string LegendToolTip
		{
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.LegendToolTip, value);
				else 
					series.legendToolTip = value;
				
				if(Chart != null && Chart.selection != null)
				{
					Chart.selection.enabledChecked = false;
				}
                CallOnModifing();
            }
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.LegendToolTip))
					{
						return (String)GetAttributeObject(CommonCustomProperties.LegendToolTip);
					}
					else
					{
						if(IsSerializing())
						{
							return "";
						}
						if(this.isEmptyPoint)
						{
							return (string)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.LegendToolTip);
						}

						return series.legendToolTip;

					}
				}
				else
				{
					return series.legendToolTip;
				}
			}
		}



		/// <summary>
		/// Background color of the data point label.
		/// </summary>
		[
		SRCategory("CategoryAttributeLabelAppearance"),
		Bindable(true),
        SRDescription("DescriptionAttributeLabelBackColor"),
        TypeConverter(typeof(ColorConverter)),
#if DESIGNER
        Editor(typeof(ChartColorEditor), typeof(UITypeEditor)),
#endif
        DefaultValue(typeof(Color), ""),
		]
		public Color LabelBackColor
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.LabelBackColor))
					{
						return (Color)GetAttributeObject(CommonCustomProperties.LabelBackColor);
					}
					else
					{
						if(IsSerializing())
						{
							return Color.Empty;
						}
						if(this.isEmptyPoint)
						{
							return (Color)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.LabelBackColor);
						}
						if(SystemInformation.HighContrast)
						{
							return SystemColors.Window;
						}

						return series.labelBackColor;
					}
				}
				else
				{
					return series.labelBackColor;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.LabelBackColor, value);
				else
					series.labelBackColor = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}

		/// <summary>
		/// Border color of the data point label.
		/// </summary>
		[
		SRCategory("CategoryAttributeLabelAppearance"),
		Bindable(true),
        SRDescription("DescriptionAttributeBorderColor"),
        TypeConverter(typeof(ColorConverter)),
#if DESIGNER
        Editor(typeof(ChartColorEditor), typeof(UITypeEditor)),
#endif
        DefaultValue(typeof(Color), ""),
		]
		public Color LabelBorderColor
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.LabelBorderColor))
					{
						return (Color)GetAttributeObject(CommonCustomProperties.LabelBorderColor);
					}
					else
					{
						if(IsSerializing())
						{
							return Color.Empty;
						}
						if(this.isEmptyPoint)
						{
							return (Color)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.LabelBorderColor);
						}
						if(SystemInformation.HighContrast)
						{
							return SystemColors.ActiveBorder;
						}

						return series.labelBorderColor;
					}
				}
				else
				{
					return series.labelBorderColor;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.LabelBorderColor, value);
				else
					series.labelBorderColor = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}

		/// <summary>
		/// Border style of the label.
		/// </summary>
		[
		SRCategory("CategoryAttributeLabelAppearance"),
		Bindable(true),
        SRDescription("DescriptionAttributeLabelBorderDashStyle")
		]
		public ChartDashStyle LabelBorderDashStyle
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.LabelBorderDashStyle))
					{
						return (ChartDashStyle)GetAttributeObject(CommonCustomProperties.LabelBorderDashStyle);
					}
					else
					{
						if(IsSerializing())
						{
							return ChartDashStyle.Solid;
						}
						if(this.isEmptyPoint)
						{
							return (ChartDashStyle)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.LabelBorderDashStyle);
						}

						return series.labelBorderDashStyle;

					}
				}
				else
				{
					return series.labelBorderDashStyle;
				}
			}
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.LabelBorderDashStyle, value);
				else
					series.labelBorderDashStyle = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}

        /// <summary>
        /// Border width of the label.
        /// </summary>
		[
		SRCategory("CategoryAttributeLabelAppearance"),
		Bindable(true),
        SRDescription("DescriptionAttributeBorderWidth")
		]
		public int LabelBorderWidth
		{
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.LabelBorderWidth))
					{
						return (int)GetAttributeObject(CommonCustomProperties.LabelBorderWidth);
					}
					else
					{
						if(IsSerializing())
						{
							return 1;
						}
						if(this.isEmptyPoint)
						{
							return (int)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.LabelBorderWidth);
						}

						return series.labelBorderWidth;

					}
				}
				else
				{
					return series.labelBorderWidth;
				}
			}
			set
			{
				if(value < 0)
				{
					throw(new ArgumentOutOfRangeException("value", SR.ExceptionLabelBorderIsNotPositive));
				}
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.LabelBorderWidth, value);
				else
					series.labelBorderWidth = value;
				this.Invalidate(true);
                CallOnModifing();
            }
		}

		/// <summary>
		/// Tooltip of the data point label.
		/// </summary>
		[
		SRCategory("CategoryAttributeLabel"),
		Bindable(true),
		SRDescription("DescriptionAttributeLabelToolTip"),
#if DESIGNER
        Editor(typeof(KeywordsStringEditor), typeof(UITypeEditor)),
#endif
        ]
        public string LabelToolTip
		{
			set
			{
				if(this.pointCustomProperties)
					SetAttributeObject(CommonCustomProperties.LabelToolTip, value);
				else 
					series.labelToolTip = value;
				
				if(Chart != null && Chart.selection != null)
				{
					Chart.selection.enabledChecked = false;
				}
                CallOnModifing();
            }
			get
			{
				if(this.pointCustomProperties)
				{
					if(properties.Count != 0 && IsCustomPropertySet(CommonCustomProperties.LabelToolTip))
					{
						return (String)GetAttributeObject(CommonCustomProperties.LabelToolTip);
					}
					else
					{
						if(IsSerializing())
						{
							return "";
						}
						if(this.isEmptyPoint)
						{
							return (string)series.EmptyPointStyle.GetAttributeObject(CommonCustomProperties.LabelToolTip);
						}

						return series.labelToolTip;

					}
				}
				else
				{
					return series.labelToolTip;
				}
			}
		}

        #endregion

        #region Serialization control



        private bool CheckIfSerializationRequired(CommonCustomProperties attribute)
		{
			if(this is DataPoint)
			{
				return IsCustomPropertySet(attribute);
			}
			else
			{
				object attr1 = this.GetAttributeObject(attribute);
				object attr2 = Series.defaultCustomProperties.GetAttributeObject(attribute);
				if(attr1 == null || attr2 == null)
				{
					return false;
				}
				return ! attr1.Equals(attr2);
			}
		}

		private void ResetProperty(CommonCustomProperties attribute)
		{
			if(this is DataPoint)
			{
				DeleteCustomProperty(attribute);
			}
			else
			{
                this.SetAttributeObject(attribute, Series.defaultCustomProperties.GetAttributeObject(attribute));
			}
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeLabel()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.Label);
			else
				return !String.IsNullOrEmpty(series.label);
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeAxisLabel()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.AxisLabel);
			else
				return !String.IsNullOrEmpty(series.axisLabel);
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeLabelFormat()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.LabelFormat);
			else
				return !String.IsNullOrEmpty(series.labelFormat);
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
        internal bool ShouldSerializeIsValueShownAsLabel()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.IsValueShownAsLabel);
			else
				return series.showLabelAsValue != false;
		}		

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeColor()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.Color);
			else
				return series.color != Color.Empty;
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeBorderColor()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.BorderColor);
			else
				return series.borderColor != Color.Empty;
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeBorderDashStyle()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.BorderDashStyle);
			else
				return series.borderDashStyle != ChartDashStyle.Solid;
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeBorderWidth()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.BorderWidth);
			else
				return series.borderWidth != 1;
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeMarkerBorderWidth()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.MarkerBorderWidth);
			else
				return series.markerBorderWidth != 1;
		}
		
		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeBackImage()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.BackImage);
			else
				return !String.IsNullOrEmpty(series.backImage);
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeBackImageWrapMode()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.BackImageWrapMode);
			else
				return series.backImageWrapMode != ChartImageWrapMode.Tile;
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeBackImageTransparentColor()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.BackImageTransparentColor);
			else
				return series.backImageTransparentColor != Color.Empty;
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>

        internal bool ShouldSerializeBackImageAlignment()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.BackImageAlignment);
			else
				return series.backImageAlignment != ChartImageAlignmentStyle.TopLeft;
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeBackGradientStyle()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.BackGradientStyle);
			else
				return series.backGradientStyle != GradientStyle.None;
		}
		
		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeBackSecondaryColor()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.BackSecondaryColor);
			else
				return series.backSecondaryColor != Color.Empty;
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeBackHatchStyle()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.BackHatchStyle);
			else
				return series.backHatchStyle != ChartHatchStyle.None;
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeFont()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.Font);
			else
			{
                return series.font != series.FontCache.DefaultFont;
			}
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		internal bool ShouldSerializeLabelForeColor()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.LabelForeColor);
			else
				return series.fontColor != Color.Black;
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeLabelAngle()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.LabelAngle);
			else
				return series.fontAngle != 0f;
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeMarkerStyle()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.MarkerStyle);
			else
				return series.markerStyle != MarkerStyle.None;
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeMarkerSize()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.MarkerSize);
			else
				return series.markerSize != 5;
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeMarkerImage()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.MarkerImage);
			else
				return !String.IsNullOrEmpty(series.markerImage);
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeMarkerImageTransparentColor()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.MarkerImageTransparentColor);
			else
				return series.markerImageTransparentColor != Color.Empty;
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeMarkerColor()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.MarkerColor);
			else
				return series.markerColor != Color.Empty;
		}
		
		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeMarkerBorderColor()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.MarkerBorderColor);
			else
				return series.markerBorderColor != Color.Empty;
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeToolTip()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.ToolTip);
			else
				return !String.IsNullOrEmpty(series.toolTip);
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
        internal bool ShouldSerializeIsVisibleInLegend()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.IsVisibleInLegend);
			else
				return series.showInLegend != true;
		}		

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeLegendText()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.LegendText);
			else
				return !String.IsNullOrEmpty(series.legendText);
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeLegendToolTip()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.LegendToolTip);
			else
				return !String.IsNullOrEmpty(series.legendToolTip);
		}



		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeLabelToolTip()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.LabelToolTip);
			else
				return !String.IsNullOrEmpty(series.labelToolTip);
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeLabelBackColor()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.LabelBackColor);
			else
				return series.labelBackColor != Color.Empty;
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeLabelBorderColor()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.LabelBorderColor);
			else
				return series.labelBorderColor != Color.Empty;
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeLabelBorderDashStyle()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.LabelBorderDashStyle);
			else
				return series.labelBorderDashStyle != ChartDashStyle.Solid;
		}

		/// <summary>
		/// Returns true if property should be serialized.
		/// </summary>
		
		internal bool ShouldSerializeLabelBorderWidth()
		{
			if(this.pointCustomProperties)
				return CheckIfSerializationRequired(CommonCustomProperties.LabelBorderWidth);
			else
				return series.labelBorderWidth != 1;
		}


		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetLabel()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.Label);
			else
				series.label = "";
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetAxisLabel()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.AxisLabel);
			else
				series.axisLabel = "";
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetLabelFormat()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.LabelFormat);
			else
				series.labelFormat = "";
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
        public void ResetIsValueShownAsLabel()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.IsValueShownAsLabel);
			else
				series.IsValueShownAsLabel = false;
		}		

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetColor()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.Color);
			else
				series.color = Color.Empty;
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetBorderColor()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.BorderColor);
			else
				series.borderColor = Color.Empty;
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetBorderDashStyle()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.BorderDashStyle);
			else
				series.borderDashStyle = ChartDashStyle.Solid;
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetBorderWidth()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.BorderWidth);
			else
				series.borderWidth = 1;
		}



		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetMarkerBorderWidth()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.MarkerBorderWidth);
			else
				series.markerBorderWidth = 1;
		}



        /// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetBackImage()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.BackImage);
			else
				series.backImage = "";
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetBackImageWrapMode()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.BackImageWrapMode);
			else
				series.backImageWrapMode = ChartImageWrapMode.Tile;
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetBackImageTransparentColor()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.BackImageTransparentColor);
			else
				series.backImageTransparentColor = Color.Empty;
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetBackSecondaryColor()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.BackSecondaryColor);
			else
				series.backSecondaryColor = Color.Empty;
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetBackHatchStyle()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.BackHatchStyle);
			else
				series.backHatchStyle = ChartHatchStyle.None;
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetFont()
		{
            if (this.pointCustomProperties)
                ResetProperty(CommonCustomProperties.Font);
            else
            {
                series.font = series.FontCache.DefaultFont;
            }
		}


		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetLabelAngle()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.LabelAngle);
			else
				series.fontAngle = 0;
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetMarkerStyle()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.MarkerStyle);
			else
				series.markerStyle = MarkerStyle.None;
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetMarkerSize()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.MarkerSize);
			else
				series.markerSize = 5;
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetMarkerImage()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.MarkerImage);
			else
				series.markerImage = "";
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetMarkerImageTransparentColor()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.MarkerImageTransparentColor);
			else
				series.markerImageTransparentColor = Color.Empty;
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetMarkerColor()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.MarkerColor);
			else
				series.markerColor = Color.Empty;
		}
		
		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetMarkerBorderColor()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.MarkerBorderColor);
			else
				series.markerBorderColor = Color.Empty;
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetToolTip()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.ToolTip);
			else
				series.toolTip = "";

			if(Chart != null && Chart.selection != null)
			{
				Chart.selection.enabledChecked = false;
			}
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
        public void ResetIsVisibleInLegend()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.IsVisibleInLegend);
			else
				series.showInLegend = true;
		}		

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetLegendText()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.LegendText);
			else
				series.legendText = "";
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetLegendToolTip()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.LegendToolTip);
			else
				series.legendToolTip = "";

			if(Chart != null && Chart.selection != null)
			{
				Chart.selection.enabledChecked = false;
			}
		}



		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetLabelBackColor()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.LabelBackColor);
			else
				series.labelBackColor = Color.Empty;
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetLabelBorderColor()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.LabelBorderColor);
			else
				series.labelBorderColor = Color.Empty;
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetLabelBorderDashStyle()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.LabelBorderDashStyle);
			else
				series.labelBorderDashStyle = ChartDashStyle.Solid;
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetLabelBorderWidth()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.LabelBorderWidth);
			else
				series.labelBorderWidth = 1;
		}

		/// <summary>
		/// Resets property to its default value.
		/// </summary>
		
		internal void  ResetLabelToolTip()
		{
			if(this.pointCustomProperties)
				ResetProperty(CommonCustomProperties.LabelToolTip);
			else
				series.labelToolTip = "";

			if(Chart != null && Chart.selection != null)
			{
				Chart.selection.enabledChecked = false;
			}
		}

        

		#endregion

		#region Invalidating method

		/// <summary>
		/// Invalidate chart area.
		/// </summary>
		/// <param name="invalidateLegend">Invalidate legend area only.</param>
        [SuppressMessage("Microsoft.Usage", "CA1801:ReviewUnusedParameters", Justification = "This parameter is used when compiling for the WinForms version of Chart")]
		internal void Invalidate(bool invalidateLegend)
		{
			if(this.series != null)
			{
				series.Invalidate(true, invalidateLegend);
			}
			else
			{
                Series thisSeries = this as Series;
                if (thisSeries != null)
                {
                    thisSeries.Invalidate(true, invalidateLegend);
                }
			}
		}

		#endregion
    }

	/// <summary>
	/// Class stores additional information about the data point in 3D space.
	/// </summary>
	internal class DataPoint3D
	{
		#region Fields

		/// <summary>
		/// Reference to the 2D data point object
		/// </summary>
		internal	DataPoint	dataPoint = null;

		/// <summary>
		/// Data point index.
		/// </summary>
		internal	int			index = 0;

		/// <summary>
		/// Point X position in relative coordinates.
		/// </summary>
		internal	double		xPosition = 0.0;

		/// <summary>
		/// Point Y position in relative coordinates.
		/// </summary>
		internal	double		yPosition = 0.0;

		/// <summary>
		/// Point X center position in relative coordinates. Used for side-by-side charts.
		/// </summary>
		internal	double		xCenterVal = 0.0;

		/// <summary>
		/// Point Z position in relative coordinates.
		/// </summary>
		internal	float		zPosition = 0f;

		/// <summary>
		/// Point width.
		/// </summary>
		internal	double		width = 0.0;

		/// <summary>
		/// Point height.
		/// </summary>
		internal	double		height = 0.0;

		/// <summary>
		/// Point depth.
		/// </summary>
		internal	float		depth = 0f;

		/// <summary>
		/// Indicates that point belongs to indexed series.
		/// </summary>
		internal	bool		indexedSeries = false;

		#endregion
	}

	/// <summary>
	/// Design-time representation of the CustomProperties.
	/// This class is used instead of the string "CustomProperties"
	/// property at design time and supports expandable list
	/// of custom properties.
	/// </summary>
	[ TypeConverter(typeof(CustomPropertiesTypeConverter)) ]
    [EditorBrowsable(EditorBrowsableState.Never)]
    public class CustomProperties
	{
		#region Fields

		// Reference to the properties class
        internal DataPointCustomProperties m_DataPointCustomProperties = null;

		#endregion // Fields

		#region Constructor

		/// <summary>
		/// Constructor
		/// </summary>
		/// <param name="properties">Attributes object.</param>
        internal CustomProperties(DataPointCustomProperties properties)
		{
            this.m_DataPointCustomProperties = properties;
		}

		#endregion // Constructor

        #region Properties

        internal virtual DataPointCustomProperties DataPointCustomProperties
        {
            get
            {
                return this.m_DataPointCustomProperties;
            }
            set
            {
                this.m_DataPointCustomProperties = value;
            }

        }

        #endregion //Properties

        #region Methods

        /// <summary>
		/// Gets a comma separated string of user defined custom properties.
		/// </summary>
		/// <returns>Comma separated string of user defined custom properties.</returns>
        internal virtual string GetUserDefinedCustomProperties()
		{
            return GetUserDefinedCustomProperties(true);
		}

		/// <summary>
		/// Gets a comma separated string of user defined or non-user defined custom properties.
		/// </summary>
		/// <param name="userDefined">True if user defined properties must be returned.</param>
		/// <returns>Comma separated string of user defined custom properties.</returns>
        internal virtual string GetUserDefinedCustomProperties(bool userDefined)
		{
			// Get comma separated string of custom properties
            string customAttribute = this.DataPointCustomProperties.CustomProperties;
			string	userDefinedCustomAttribute = string.Empty;

			// Get custom attribute registry
            CustomPropertyRegistry registry = (CustomPropertyRegistry)this.DataPointCustomProperties.Common.container.GetService(typeof(CustomPropertyRegistry));

			// Replace commas in value string
			customAttribute = customAttribute.Replace("\\,", "\\x45");
			customAttribute = customAttribute.Replace("\\=", "\\x46");

			// Split custom properties by commas into individual properties
			if(customAttribute.Length > 0)
			{
				string[]	nameValueStrings = customAttribute.Split(',');
				foreach(string nameValue in nameValueStrings)
				{
					string[] values = nameValue.Split('=');

					// Check format
					if(values.Length != 2)
					{
						throw(new FormatException(SR.ExceptionAttributeInvalidFormat));
					}
						
					// Check for empty name or value
					values[0] = values[0].Trim();
					values[1] = values[1].Trim();
					if(values[0].Length == 0)
					{
						throw(new FormatException(SR.ExceptionAttributeInvalidFormat));
					}

					// Check if attribute is registered or user defined
					bool	userDefinedAttribute = true;
					foreach(CustomPropertyInfo info in registry.registeredCustomProperties)
					{
						if(string.Compare(info.Name, values[0], StringComparison.OrdinalIgnoreCase) == 0)
						{
							userDefinedAttribute = false;
						}
					}

					// Copy attribute into the output string
					if(userDefinedAttribute == userDefined)
					{
						if(userDefinedCustomAttribute.Length > 0)
						{
							userDefinedCustomAttribute += ", ";
						}

						string val = values[1].Replace("\\x45", ",");
						val = val.Replace("\\x46", "=");
						userDefinedCustomAttribute += values[0] + "=" + val;
					}
				}
			}

			return userDefinedCustomAttribute;
		}

		/// <summary>
		/// Sets user defined custom properties without cleaning registered properties.
		/// </summary>
		/// <param name="val">New user defined properties.</param>
		internal virtual void SetUserDefinedAttributes(string val)
		{
			// Get non-user defined custom properties
            string properties = GetUserDefinedCustomProperties(false);

			// Check if new string is empty
			if(val.Length > 0)
			{
				// Add comma at the end
				if(properties.Length > 0)
				{
                    properties += ", ";
				}

				// Add new user defined properties
                properties += val;
			}

			// Set new custom attribute string
            this.DataPointCustomProperties.CustomProperties = properties;
		}


		#endregion // Methods
	}
}