Add rows to GridView using Footer Row when no data in ASP.Net

I have refered ur article

http://www.aspsnippets.com/Articles/Simple-Insert-Select-Edit-Update-and-Delete-in-ASPNet-GridView-control.aspx

What if there are no rows in the table than how to add rows in the grid?

If i wanna use grid for entry purpose not having a single row then how could i use the above code.