private void DisplayHistoryGrid()
 {
     whitfield_reports _wRep = new whitfield_reports();
     DataSet _dsRep = new DataSet();
     _dsRep = _wRep.GetFieldDailyReports(Convert.ToInt32(ViewState["twc_project_number"].ToString()));
     this.PopulateDataGrid(_dsRep, grdHistoryRpt);
 }