Hi Raghu,

Thank you for posting in our community!

While you can't directly bind that DataTable to the WebDataTree, I would recommend placing it into a DataSet or WebHierarchicalDataSource.  You can then define the relations and bind it to the WebDataTree.

You can find information on binding to a WebDataTree in our documentation here:

http://help.infragistics.com/NetAdvantage/ASPNET/current/CLR4.0/?page=WebDataTree_Binding_to_Data.html

Please let me know if you need further assistance with this and I'll be glad to help.