protected virtual void OnViewYearChanged(DateChangedEventArgs e)
{
if (ViewYearChanged != null)
{
ViewYearChanged(this, e);
}
ViewYear = DefaultCalendar.GetYear(e.NewValue.Value);
}
protected virtual void OnSelectedYearChanged(DateChangedEventArgs e)
{
if (SelectedYearChanged != null)
{
SelectedYearChanged(this, e);
}
SelectedYear = e.NewValue.HasValue ? DefaultCalendar.GetYear(e.NewValue.Value) : -1;
}