IsDragEnabled Question and Help

[crazy05]

Hello,

I am trying to implement the same scenario as in this link. 

http://docs.telerik.com/devtools/wpf/controls/radtreeview/populating-with-data/data-binding-to-object

I want to move the item within the same division and don't allow to move to other division.

How can I restrict IsDragEnabled at HierarchicalDataTemplate level ?

[crazy05]

Any help ?

[Petar Mladenov]

Hi Ram,

You can handle the DragDropManager.DragOver event and implement your custom logic there.
Let's have, for example our DragDropBetweenTreeViews project. Once you have the options object:

private void OnApplicationTreeDragOver(object sender, Telerik.Windows.DragDrop.DragEventArgs e)
      {
          var options = DragDropPayloadManager.GetDataFromObject(e.Data, TreeViewDragDropOptions.Key) as TreeViewDragDropOptions;
          if (options == null)
              return;

you have DropTargetItem property which will tell you that the dragged object is above branch (division) X different from your source division Y. (divisions can be models in your application). To deny the drop you need to set::

options.DropAction = DropAction.None;

and then update the drag visual:

options.UpdateDragVisual();

We hope this moves you in the right direction.

Regards,
Petar Mladenov
Telerik by Progress