Xceed.Wpf.Toolkit.DateTimePicker.OnValueChanged C# (CSharp) Method

OnValueChanged() protected method

protected OnValueChanged ( System.DateTime oldValue, System.DateTime newValue ) : void
oldValue System.DateTime
newValue System.DateTime
return void
    protected override void OnValueChanged( DateTime? oldValue, DateTime? newValue )
    {
      //The calendar only select the Date part, not the time part.
      DateTime? newValueDate = (newValue != null) 
        ? newValue.Value.Date 
        : (DateTime?)null;

      if( _calendar != null && _calendar.SelectedDate != newValueDate)
      {
        _calendar.SelectedDate = newValueDate;
        _calendar.DisplayDate = newValue.GetValueOrDefault( this.ContextNow );
      }

      //If we change any part of the datetime without
      //using the calendar when the actual date is temporary,
      //clear the temporary value. 
      if( _calendarTemporaryDateTime != null &&
        newValue != _calendarTemporaryDateTime )
      {
        _calendarTemporaryDateTime = null;
        _calendarIntendedDateTime = null;
      }

      base.OnValueChanged( oldValue, newValue );
    }