3rdpartylibs/fastreports.wpf/FastReport.Forms.WPF/Controls/DateTimePicker.cs

using System.Globalization;

namespace System.Windows.Forms
{
    public class DateTimePicker : Control
    {
        protected new CustomControls.DateTimePicker control { get; }

        private DateTimePickerFormat format;
        public DateTimePickerFormat Format 
        {
            get => format;
            set
            {
                format = value;
                if (format == DateTimePickerFormat.Short)
                    CustomFormat = CultureInfo.CurrentCulture.DateTimeFormat.ShortDatePattern;
                else if (format == DateTimePickerFormat.Long)
                    CustomFormat = CultureInfo.CurrentCulture.DateTimeFormat.LongDatePattern;
                else if (format == DateTimePickerFormat.Time)
                    CustomFormat = CultureInfo.CurrentCulture.DateTimeFormat.LongTimePattern;
            }
        }

        public string CustomFormat 
        {
            get => format == DateTimePickerFormat.Custom ? control.CustomFormat : "";
            set => control.CustomFormat = value; 
        }

        public DateTime Value 
        {
            get => control.Value ?? DateTime.MinValue;
            set => control.Value = value;
        }

        public DateTime MinDate 
        {
            get => control.DisplayDateStart ?? DateTime.MinValue;
            set => control.DisplayDateStart = value;
        }
        
        public DateTime MaxDate 
        { 
            get => control?.DisplayDateEnd ?? DateTime.MaxValue;
            set => control.DisplayDateEnd = value;
        }

        public bool ShowCheckBox { get; set; }

        public bool ShowUpDown { get; set; }

        public LeftRightAlignment DropDownAlign { get; set; }

        public bool Checked { get; set; }

        public event EventHandler ValueChanged;

        protected override void SetControlHeight(int value)
        {
            // ignore height
        }

        public DateTimePicker()
        {
            control = new();
            SetControl(control);

            control.SelectedDateChanged += (sender,e) => ValueChanged?.Invoke(this, EventArgs.Empty);
            BackColor = System.Drawing.SystemColors.Window;
            Width = 200;
            Format = DateTimePickerFormat.Long;
        }
    }
}