public void LoadListBookingHallHaveNotMenus()
 {
     try
     {
         ReceptionTaskBO aReceptionTaskBO = new ReceptionTaskBO();
         BookingHallsBO aBookingHallsBO = new BookingHallsBO();
         List<BookingHallsEN> aListTemp = new List<BookingHallsEN>();
         //danh sach tiec chưa có thực đơn
         aListTemp.Clear();
         aListTemp = aReceptionTaskBO.GetListBookingHallsNotMenus_ByBookingHallsDate(dtpFrom.DateTime.Date, dtpTo.DateTime.Date); // tiec da co thuc don
         dgvHaveNotMenus.DataSource = this.GetListBookingHalls(aListTemp);
         dgvHaveNotMenus.RefreshDataSource();
     }
     catch (Exception ex)
     {
         MessageBox.Show("frmTsk_CheckMenus.LoadListBookingHallHaveNotMenus\n" + ex.ToString(), "Thông báo", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
 }