private void TimKiemThongTin(bool theongay)
 {
     try
     {
         int Hos_status = -1;
         //if (radNgoaiTru.Checked) Hos_status = 0;
         //if (radNoiTru.Checked) Hos_status = 1;
         m_dtPatient =
             _KCB_DANGKY.KcbTiepdonLayDanhSachKhachhang(dtmFrom.Value, dtmTo.Value,
                                                        Utility.sDbnull(txtPatientName.Text, ""), Utility.Int64Dbnull(txtPatient_ID.Text, -1),
                                                        Utility.sDbnull(txtPatientCode.Text, ""), Hos_status);
         Utility.SetDataSourceForDataGridEx(grdList, m_dtPatient, true, true, "1=1",
                                            KnDanhsachKhachhang.Columns.IdKhachhang + " desc");
         if (grdList.GetDataRows().Length <= 0)
         {
             m_dataDataRegExam.Rows.Clear();
         }
         UpdateGroup();
     }
     catch (Exception ex)
     {
         Utility.ShowMsg("Lỗi:" + ex.Message);
     }
     finally
     {
         ModifyCommand();
     }
 }