void SubOperationAddProject_Completed(object sender, EventArgs e)
        {
            SubmitOperation submitOperation = sender as SubmitOperation;

            if (submitOperation.HasError)
            {
                submitOperation.MarkErrorAsHandled();
                NotifyWindow notifyWindow = new NotifyWindow("错误", "保存失败");
                notifyWindow.Show();
                if (addTaxPayerEntity != null)
                {
                    TaxPayerList.Remove(addTaxPayerEntity);
                    addTaxPayerEntity = null;
                }
                IsBusy = false;
            }
            else
            {
                addTaxPayerEntity.Update();
                AutoLinkDocumentFiles(addTaxPayerEntity, SelectTaxPayerEntity);
            }
        }
        void SubOperation_Completed(object sender, EventArgs e)
        {
            SubmitOperation submitOperation = sender as SubmitOperation;

            if (submitOperation.HasError)
            {
                submitOperation.MarkErrorAsHandled();
                NotifyWindow notifyWindow = new NotifyWindow("错误", "保存失败");
                notifyWindow.Show();
                if (addTaxPayerEntity != null)
                {
                    TaxPayerList.Remove(addTaxPayerEntity);
                    addTaxPayerEntity = null;
                }
            }
            else
            {
                NotifyWindow notifyWindow = new NotifyWindow("保存成功", "保存成功!");
                notifyWindow.Show();
                addTaxPayerEntity = null;
                LoadData();
            }
            IsBusy = false;
        }