void HierarchyControl_PreviewMouseRightButtonDown(object sender, MouseButtonEventArgs e)
{
if (sender is TextBlock)
{
var draggedItem = WPFHelper.FindParent <HierarchyControl>(sender as TextBlock);
//create drag and drop item
DragController.CreateDragDropWindow(draggedItem);
//get rid of this hierarchy control manually
HierarchyControl_Unloaded(null, null);
DataObject dragData = new DataObject("control", draggedItem);
DragDrop.DoDragDrop(draggedItem, dragData, DragDropEffects.All);
DragController.DestroyDragDropWindow();
e.Handled = true;
}
;
}