private void btnCapNhat_Click(object sender, EventArgs e) { if (!Check_Valid()) { return; } try { SetInfo(); if (status == 0) { oBKQHT_LopHocLai.Add(pKQHT_LopHocLaiInfo); ThemThanhCong(); GetLopHocLai(DM_MonHocID); } else { oBKQHT_LopHocLai.Update(pKQHT_LopHocLaiInfo); SuaThanhCong(); GetLopHocLai(DM_MonHocID); } ClearText(); cmbGiangVien.EditValue = null; } catch (Exception ex) { XtraMessageBox.Show(ex.Message); } }