private void Slider_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
{
Slider slider = sender as Slider;
DateTime StartTime= new DateTime(2000, 08, 04, 02, 00, 00, DateTimeKind.Utc);
//DateTime EndTime= new DateTime(2000, 10, 22, 08, 00, 00, DateTimeKind.Utc);
//TimeSpan diff = EndTime.Subtract(StartTime);
//int days = (int)Math.Floor(diff.TotalDays);
CurrentDate = StartTime.AddDays(e.NewValue);
if (MyMap == null)
return;
MyMap.TimeExtent.Start = StartTime;
MyMap.TimeExtent.End = CurrentDate;
(MyMap.Layers["MyHurricaneFeatureLayer"] as FeatureLayer).Refresh();
}