Easy way to add Serial Numbers Column in Gridview

May occasions we need to give Serial numbers to our grid like 1,2,3,4,5, this I have tried my hand for a while and what I found.....

I have posted it in someones questions earlier. We can give alphabets also but its usage is limited so that part is omitted. (it is somewhat tedious also).

<asp:TemplateField>
            <HeaderTemplate>
            Serial No.</HeaderTemplate>
            <ItemTemplate>
            <asp:Label ID="lblSRNO" runat="server" 
                Text='<%#Container.DataItemIndex+1 %>'></asp:Label>
            </ItemTemplate>
            </asp:TemplateField>

This code works as same when we apply paging.

We cannot use this on BoundFields because they support only those objects who have Databinding event