public AHIDZONEQUEUE getUsingHIDZoneQueueByVhID(string vh)
        {
            AHIDZONEQUEUE zone_queue = null;

            using (DBConnection_EF con = DBConnection_EF.GetUContext())
            {
                zone_queue = HIDQueueDao.getUsingHIDZoneQueue(con, vh);
            }
            return(zone_queue);
        }