.NET DataGrid Control

Hi, I am trying to build  GridView that will use the option of sorting and paging by allowing CallBack property in the GridView. The problem that i found that if i want to add  columns  in code ...

I have a DataList control that I want users to be able to sort the data in by clicking 1 of 3 buttons. The function I have created to do this is as follows: Private Sub SortPoems(ByVal sortby As String) ...