12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182 |
- using FastReport.Utils;
- using System.Collections;
- namespace FastReport.Data
- {
- /// <summary>
- /// Represents the collection of <see cref="DataSourceBase"/> objects.
- /// </summary>
- public class DataSourceCollection : FRCollectionBase
- {
- /// <summary>
- /// Gets or sets a data source.
- /// </summary>
- /// <param name="index">The index of a data source in this collection.</param>
- /// <returns>The data source with specified index.</returns>
- public DataSourceBase this[int index]
- {
- get { return List[index] as DataSourceBase; }
- set { List[index] = value; }
- }
- /// <summary>
- /// Finds a datasource by its name.
- /// </summary>
- /// <param name="name">The name of a datasource.</param>
- /// <returns>The <see cref="DataSourceBase"/> object if found; otherwise <b>null</b>.</returns>
- public DataSourceBase FindByName(string name)
- {
- foreach (DataSourceBase c in this)
- {
- if (c.Name == name)
- return c;
- }
- return null;
- }
- /// <summary>
- /// Finds a datasource by its alias.
- /// </summary>
- /// <param name="alias">The alias of a datasource.</param>
- /// <returns>The <see cref="DataSourceBase"/> object if found; otherwise <b>null</b>.</returns>
- public DataSourceBase FindByAlias(string alias)
- {
- foreach (DataSourceBase c in this)
- {
- if (c.Alias == alias)
- return c;
- }
- return null;
- }
- /// <summary>
- /// Sorts data sources by their names.
- /// </summary>
- public void Sort()
- {
- InnerList.Sort(new DataSourceComparer());
- }
- /// <summary>
- /// Initializes a new instance of the <see cref="DataSourceCollection"/> class with default settings.
- /// </summary>
- /// <param name="owner">The owner of this collection.</param>
- public DataSourceCollection(Base owner) : base(owner)
- {
- }
- }
- /// <summary>
- /// Represents the comparer class that used for sorting the collection of data sources.
- /// </summary>
- public class DataSourceComparer : IComparer
- {
- /// <inheritdoc/>
- public int Compare(object x, object y)
- {
- string xValue = (x as DataSourceBase).Alias;
- string yValue = (y as DataSourceBase).Alias;
- return xValue.CompareTo(yValue);
- }
- }
- }
|