public void grdpl1_DeleteCommand(object sender, DataGridCommandEventArgs e)
{
String DetailId = "";
DetailId = grdpl1.DataKeys[Convert.ToInt32(e.Item.ItemIndex)].ToString();
Whitfield_Project _wc = new Whitfield_Project();
_wc.DeleteWorkOrders(DetailId, ViewState["twc_project_number"].ToString());
this.DisplayGrid();
}