namespace System.Windows.Forms
{
    public class DateRangeEventArgs : EventArgs
    {
        public DateTime Start { get; }

        public DateTime End { get; }

        public DateRangeEventArgs(DateTime start, DateTime end)
        {
            Start = start;
            End = end;
        }
    }

    public delegate void DateRangeEventHandler(object sender, DateRangeEventArgs e);
}