private void UnsubscribeFromDragDropEvents()
{
RadDragAndDropManager.RemoveDropQueryHandler(this.AssociatedObject, OnDropQuery);
RadDragAndDropManager.RemoveDropInfoHandler(this.AssociatedObject, OnDropInfo);
RadDragAndDropManager.RemoveDragQueryHandler(this.AssociatedObject, OnDragQuery);
RadDragAndDropManager.RemoveDragInfoHandler(this.AssociatedObject, OnDragInfo);
}
private void ItemsControl_Loaded(object sender, RoutedEventArgs e)
{
RadDragAndDropManager.RemoveDragQueryHandler(sender as DependencyObject, Video_DragQuery);
RadDragAndDropManager.AddDragQueryHandler(sender as DependencyObject, Video_DragQuery);
}