private static void OnEventNameChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
RadContextMenu menu = d as RadContextMenu;
menu.RemoveHandler(e.OldValue as string);
menu.AttachHandler();
}
private static void OnAttachOnHandledEventsChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
RadContextMenu menu = d as RadContextMenu;
FrameworkElement element = menu.elementWithContextMenu;
menu.RemoveHandler(menu.EventName);
menu.AttachHandler();
}