public async Task <bool> DeleteVendorByIdAsync(int id) { bool deleted = false; using TransactionScope scope = new TransactionScope(TransactionScopeAsyncFlowOption.Enabled); var getVendorForDelete = await _repository.GetVendorByIdAsync(id); var deleteVendor = await _repository.DeleteVendorByIdAsync(getVendorForDelete); if (getVendorForDelete != null) { deleted = true; } var vendorDeleteDTO = new VendorUpdateDTO { Id = getVendorForDelete.Id, Name = getVendorForDelete.Name, Title = getVendorForDelete.Title, Date = getVendorForDelete.Date }; string json = JsonConvert.SerializeObject(vendorDeleteDTO); var history = new History() { VendorId = vendorDeleteDTO.Id, Operation = "Delete", JsonResult = json, }; await _historyRepository.InsertHistoryAsync(history); scope.Complete(); return(deleted); }