public async Task <bool> ValidateId(RequestState RequestState) { RequestStateFilter RequestStateFilter = new RequestStateFilter { Skip = 0, Take = 10, Id = new IdFilter { Equal = RequestState.Id }, Selects = RequestStateSelect.Id }; int count = await UOW.RequestStateRepository.Count(RequestStateFilter); if (count == 0) { RequestState.AddError(nameof(RequestStateValidator), nameof(RequestState.Id), ErrorCode.IdNotExisted); } return(count == 1); }