工作中遇到的问题总结1

        var caseRefundList = entity.UP_refund_Info_CaseAPIRefund_GetList(accountName.ToLower()).Select(m => new
                        {
                            id = m.CaseID,
                            type = m.CaseType,
                            refund_id = m.id,
                            account_id = m.account_id
                        });

       var result = entityCSOS_NEW_2.Cases.Where(m => m.CaseId == modelPaypal.CaseID.ToInt()
 && m.Name == modelPaypal.Name
                                                              && m.CaseAmount == modelPaypal.RefundPrice
                                                              && m.CaseCurrency == modelPaypal.RefundCurrency
                                                            ).FirstOrDefault();

   public bool CompareRegulation
            (
                Model.OrderInfo order,
                List<Model.OrderInfo> OrderInfoList,
                List<PayPalPaymentInfo> PayPalList,
                List<BankPaymentInfo> BankList,
                List<Model.CostInv> CostInv,
                List<Model.BuyerBillDetail> BuyerBillDetailList,
                List<Model.BuyerBillInfo> BuyerBillInfoList,
                List<Model.OrderPayPalLink> payPalLinks,
                List<Model.OrderBankLink> bankLinks,
                List<Model.AccountProperty> accountProperty,
                decimal SumUpValue,
                decimal SumDownValue,
                bool IsDefinite = false //是否精确匹配（按PaypalTransactionID、Currency、TotalPrice 三个条件全匹配，准确性最高）
            )
        {
             IEnumerable<Model.OrderInfo> UnionOrders = new List<Model.OrderInfo>(); //多订单对比
             .......................
             UnionOrders=OrderInfoList;
             
             //调用WCF服务方法
             #region [计算账单邮费新方法WCF]
         
            OrderTotalPrice2 = OrderSystemService.ServiceFactory.Client.Compute(ref UnionOrders, firstOrderPriceDomestic, firstOrderPriceForeign, otherOrderPrice, 
                                                                                 account.DomesticNameList) + SumUpValue;

           //调用WCF服务方法后，返回UnionOrders对象的引用地址不在是指向原始的对象，而是一个新的对象副本。（即使该对象被Ref关键字限制；本来引用地址就是Ref传值）
           
           //对比成功后；修改数据
           foreach (var item in UnionOrders)
           {
               item.IsPaid = "1";//此时修改后，原对象OrderInfoList中的IsPaid依然是0；因为调用WCF服务方法后远程对象返回后UnionOrders并不在是指向OrderInfoList对象了。
           }
        }





 调用方法
 bool result= com.CompareRegulation
                            (
                                order,
                                OrderInfoList,
                                PayPalList,
                                BankList,
                                CostInv,
                                BuyerBillDetailList,
                                BuyerBillInfoList,
                                payPalLinks,
                                bankLinks,
                                AccountProperty,
                                SumUpValue,
                                SumDownValue
                            );
此时OrderInfoList结果集中的IsPaid任然是0；因为得到的是WCF服务返回后的一个新的副本。