The value is null, if it helps, the gridview is under a login control

vb Code:
  1. <asp:GridView ID="GridView1" runat="server"
  2.                       
  3.                         AutoGenerateEditButton="True" onpageindexchanging="GridView1_PageIndexChanging" 
  4.                           onrowcancelingedit="GridView1_RowCancelingEdit" 
  5.                           onrowediting="GridView1_RowEditing" onrowupdating="GridView1_RowUpdating" >
  6.                       </asp:GridView>