/// <summary> /// query properties by lanbuda expression ByReadOnlyDB /// </summary> /// <param name="predicate"></param> /// <param name="selector"></param> /// <returns></returns> public IQueryable <object> QueryPropertyByReadOnlyDB(Expression <Func <SiteSetting, bool> > predicate, Expression <Func <SiteSetting, object> > selector) { try { return(_repository.QueryPropertyByReadOnlyDB(predicate, selector)); } catch (Exception ex) { _log.LogError("SiteSettingAppService QueryPropertyByReadOnlyDB error occured:" + ex.Message); return(null); } }