public DataResult GetDeviceClass([FromQuery] int qId, int wId, bool menu) { var result = new DataResult(); result.datas.AddRange(menu ? DeviceClassHelper.GetMenu(wId, qId) : DeviceClassHelper.GetDetail(qId, wId)); if (qId != 0 && !result.datas.Any()) { result.errno = Error.DeviceClassNotExist; return(result); } return(result); }