public void grdManPower_UpdateCommand(object sender, DataGridCommandEventArgs e)
{
String ManPower_id = "";
ManPower_id = grdManPower.DataKeys[Convert.ToInt32(e.Item.ItemIndex)].ToString();
whitfield_reports _wRep = new whitfield_reports();
_wRep.UpdateManPowerActivity(Convert.ToInt32(ManPower_id), ((TextBox)(e.Item.FindControl("txtinstallhours"))).Text, 0);
grdManPower.EditItemIndex = -1;
grdManPower.ShowFooter = true;
this.DisplayManPowerGrid();
}