go into html code of ur page. you find this code Now just add RequiredFieldValidator below ur textbox in EditItemTemplate column. For eg: Abhijeet Tidke -- modified at 9:35 Monday 26th June, 2006

Hi Try this one.... textpersid = (System.Web.UI.WebControls.TextBox)e.Item.Cells[0].Controls[0]; or textpersid = (System.Web.UI.WebControls.TextBox)e.Item.Cells[0].Controls[1]; Abhijeet