C＃TransactionSearch方法PayPal API的有效示例

Question

我一直在努力寻找一个有效且良好的例子来说明如何使用PayPal的TransactionSearch方法，该方法返回指定时间范围内所有交易的历史记录。

我偶然发现了这个例子：

AccountType accountType = AccountType.Live;
tblPayPalAccount account = PayPalAPICallHelperSOAP.GetAccount(accountType);
DateTime endDate = new DateTime(2012, 1, 1);
DateTime startDate = new DateTime(2012, 12, 31);


    using (PayPalAPIInterfaceClient client = new PayPalAPIInterfaceClient())
    {
        client.Endpoint.Address = new System.ServiceModel.EndpointAddress("https://api-3t.paypal.com/2.0");
        UserIdPasswordType userIdPasswordType = PayPalAPICallHelperSOAP.GetUserIdPasswordType(account);
        CustomSecurityHeaderType header = new CustomSecurityHeaderType();
        header.Credentials = userIdPasswordType;

        TransactionSearchReq request = new TransactionSearchReq();

        request.TransactionSearchRequest = new TransactionSearchRequestType();

        request.TransactionSearchRequest.Version = account.version;
        request.TransactionSearchRequest.StartDate = startDate;

        request.TransactionSearchRequest.EndDate = endDate;

        TransactionSearchResponseType transactionSearchResponseType = client.TransactionSearch(ref header, request);
    }

但是大多数这些课程都不可用。我已经安装了PayPal .NET SDK和PayPal Merchant API ......

我在这里遗漏了什么或这些课程已被删除/即。编写此请求的新方法已经引入？

编辑：刚找到一个解决方案（对于那些将来可能需要这个的人）

  DateTime endDate = new DateTime(2016, 11, 1);
                DateTime startDate = new DateTime(2016, 12, 1);

                TransactionSearchReq req = new TransactionSearchReq();
                req.TransactionSearchRequest = new TransactionSearchRequestType();
                req.TransactionSearchRequest.StartDate = startDate.ToString();
                req.TransactionSearchRequest.EndDate = endDate.ToString();

                PayPalAPIInterfaceServiceService service = new PayPalAPIInterfaceServiceService(Configuration.GetConfig());
//Configuration.GetConfig(); => load the NVP SOAP data from config file...

                TransactionSearchResponseType transactionSearchResponseType = service.TransactionSearch(req);
                return transactionSearchResponseType;