private static void OnCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
XComboBox owner = (XComboBox)d;
owner.OnCommandChanged((ICommand)e.OldValue, (ICommand)e.NewValue);
}
private static void OnCommandTargetChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
XComboBox owner = (XComboBox)d;
owner.UpdateCanExecute();
}
