Code:
<asp:TemplateField HeaderText="Group_Id"> <ItemTemplate> <asp:Label ID="G1" runat="server" Text='<%# Eval("Group_Id") %>'></asp:Label> </ItemTemplate> <EditItemTemplate> <asp:TextBox ID="G2" runat="server" Text='<%# Eval("Group_Id") %>'></asp:TextBox> </EditItemTemplate> <FooterTemplate> <asp:DropDownList