Add a Row Number to the GridView

Here’s a simple way to add a Row Number to the GridView. Just add the following tags to your <columns> section of your GridView

 <Columns>                       
     <asp:TemplateField HeaderText="RowNumber">   
         <ItemTemplate>
                 <%# Container.DataItemIndex + 1 %>   
         </ItemTemplate>
     </asp:TemplateField>
     ...
</Columns>

and you will get the following output