RadControls for ASP.NET AJAX
Client side changes are available on the server side after postback. You can use the ClientChanges property of RadTreeView to access them. The ClientChanges property of RadTreeView returns a collection of objects of type ClientOperation. An operation has two properties:
Note that you need to call the trackChanges() and commitChanges() client methods of RadTreeView in order to be able to access the changes on the server via the ClientChanges property.
The code snippet below enumerates through all operations in the ClientChanges collection and utilizes both the Item and Type properties. For a complete demo, please see the client-side Add/Remove/Disable Items example.