Hello,
Please add support to bind to System.Dynamic.DynamicObject: 
https://msdn.microsoft.com/en-us/library/system.dynamic.dynamicobject%28v=vs.110%29.aspx?f=255&MSPPError=-2147217396
Regards,
Douw

ADD: Copy node on Drag And Drop TreeView

How we can save the listbox items to radtree view in ajax.(when we drag it on drop on radtreeview ) and i will save that value on database in sequence mode.this is my problem

I know that the doc's specifically say that it doesn't do this, but it should. Further both the server- and client- side events should fire.

This is true of the RadTreeView as well as any of the newer controls that include a TreeView in their core functionality, (DropdownTree, TreeList).