public async Task <bool> ValidateId(Stock Stock) { StockFilter StockFilter = new StockFilter { Skip = 0, Take = 10, Id = new LongFilter { Equal = Stock.Id }, Selects = StockSelect.Id }; int count = await UOW.StockRepository.Count(StockFilter); if (count == 0) { Stock.AddError(nameof(StockValidator), nameof(Stock.Id), ErrorCode.IdNotExisted); } return(count == 1); }