private void simpleButton2_Click(object sender, EventArgs e) { string maCa; if (lkShift.EditValue != null) { maCa = lkShift.EditValue.ToString(); } else { maCa = "0"; } string fromDate = dateEdit.DateTime.Date.ToString("yyyy-MM-dd"); string toDate = dateEdit1.DateTime.Date.ToString("yyyy-MM-dd"); string boPhan = lkBoPhan.EditValue.ToString(); string mode = radioGroup.EditValue.ToString(); splashScreenManager5.ShowWaitForm(); dtReportDiemDanh = BUS_ChamCong.ReportDiemDanh(fromDate, toDate, mode, boPhan, maCa); gridDiemDanh.DataSource = dtReportDiemDanh; GridViewLookupEdit(); splashScreenManager5.CloseWaitForm(); }