public async Task <bool> ValidateId(CustomerCCEmailHistory CustomerCCEmailHistory) { CustomerCCEmailHistoryFilter CustomerCCEmailHistoryFilter = new CustomerCCEmailHistoryFilter { Skip = 0, Take = 10, Id = new IdFilter { Equal = CustomerCCEmailHistory.Id }, Selects = CustomerCCEmailHistorySelect.Id }; int count = await UOW.CustomerCCEmailHistoryRepository.Count(CustomerCCEmailHistoryFilter); if (count == 0) { CustomerCCEmailHistory.AddError(nameof(CustomerCCEmailHistoryValidator), nameof(CustomerCCEmailHistory.Id), ErrorCode.IdNotExisted); } return(count == 1); }