public bool isCMD_OHTCQueueByVh(string vh_id) { int count = 0; //DBConnection_EF con = DBConnection_EF.GetContext(); //using (DBConnection_EF con = new DBConnection_EF()) using (DBConnection_EF con = DBConnection_EF.GetUContext()) { count = cmd_ohtcDAO.getVhQueueCMDConut(con, vh_id); } return(count != 0); }