Datagrid Autogenerate serial no issue

How to generate autogenerate serial no in datagrid

add an auto generate serial number in Datagrid

//To add an auto generate serial number in Datagrid ... Add this TemplateField code in <Columns> </Columns> tegs

<asp:TemplateField HeaderText="SNO">
<ItemTemplate >
<asp:Label ID="lblsrno" Text ='<%# Container.DataItemIndex + 1%>' runat="server" />

</ItemTemplate>

<ItemStyle Width="40px" HorizontalAlign="Center" />

</asp:TemplateField>

enjoy
Rajendra Prasad Kuldeep