private void DisplayManPowerGrid()
 {
     whitfield_reports _wRep = new whitfield_reports();
     DataSet _dsRep = new DataSet();
     _dsRep = _wRep.GetManPowerEntries(_wRep.GetReportNumber(Convert.ToInt32(ViewState["twc_project_number"].ToString()), txtReportDate.Text.Trim()));
     this.PopulateManPowerDataGrid(_dsRep);
 }