protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e) { obj = (ObjectDataSource)Session["obj"]; obj.DeleteMethod = "DeleteStudent"; obj.DeleteParameters.Clear(); Label id = (Label)GridView1.Rows[e.RowIndex].FindControl("ID"); obj.DeleteParameters.Add("St_ID", id.Text); obj.Delete(); GridView1.DataSource = obj; GridView1.DataBind(); Session["obj"] = obj; }