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;
}
