Sort GridView Bound to DataTable

I have a repository that contains all of my LINQ queries for this project that I am working on. I am able to get the LINQ results to a DataTable and bind that to a gridview for displaying the data. Now I need to make the gridview sortable. I have set AllowSorting="true" and I have the OnSort event handled in a routine in the codebehind. The program makes it into the sorting routine just fine.

Ajax tabContainer using GridView inside panel, one button outside of the tabContainer

I’m creating Admin Panel using Ajax tab container which has 5 tapPanels and in that each tapPanel, I have one Panel from standard tool. And in that each Panel, I have GridView to show added data. And finally, I have one Add button outside of the Ajax tabContainer. I’ll post the design if it allows. The problem is, I don’t know the coding for tabContainer. I’ve created 10 methods so I can call it when Add button clicks.