public void grdManPower_DeleteCommand(object sender, DataGridCommandEventArgs e)
 {
     String ManPower_id = "";
     ManPower_id = grdManPower.DataKeys[Convert.ToInt32(e.Item.ItemIndex)].ToString();
     whitfield_reports _wRep = new whitfield_reports();
     _wRep.DeleteManPowerEntries(ManPower_id);
     this.DisplayManPowerGrid();
 }