Question

是否有人知道如何根据pnref或其他通过致电PayPal返回的参数来退款（使用payflow api时）。谢谢 Maciek

Answer 1

如果交易尚未结算，您可以使用Void退款。对于长期交易，例如一个月前，您需要获得信贷。这是无效代码：

    using System;
    using PayPal.Payments.Common;
    using PayPal.Payments.Common.Utility;
    using PayPal.Payments.DataObjects;
    using PayPal.Payments.Transactions;

    namespace PayPal.Payments.Samples.CS.DataObjects.BasicTransactions
    {
/// <summary>
/// This class uses the Payflow SDK Data Objects to do a simple Void transaction.
/// The request is sent as a Data Object and the response received is also a Data     Object.
/// </summary>
public class DOVoid
{
    public DOVoid()
    {
    }

    public static void Main(string[] Args)
    {
        Console.WriteLine("------------------------------------------------------");
        Console.WriteLine("Executing Sample from File: DOVoid.cs");
        Console.WriteLine("------------------------------------------------------");

        // Create the Data Objects.
        // Create the User data object with the required user details.
        //UserInfo User = new UserInfo("<user>", "<vendor>", "<partner>", "<password>");

        UserInfo User = new UserInfo("xxx", Xxx", "paypal", "password");

        // Create the Payflow  Connection data object with the required connection details.
        // The PAYFLOW_HOST property is defined in the App config file.
        PayflowConnectionData Connection = new PayflowConnectionData();
        ///////////////////////////////////////////////////////////////////

        // Create a new Void Transaction.
        // The ORIGID is the PNREF no. for a previous transaction.
        //VoidTransaction Trans = new VoidTransaction("<ORIGINAL_PNREF>",
        //  User, Connection, PayflowUtility.RequestId);

        VoidTransaction Trans = new VoidTransaction("V35A0A3E6E0C",
            User, Connection, PayflowUtility.RequestId);

        // Submit the Transaction
        Response Resp = Trans.SubmitTransaction();

        // Display the transaction response parameters.
        if (Resp != null)
        {
            // Get the Transaction Response parameters.
            TransactionResponse TrxnResponse =  Resp.TransactionResponse;

            if (TrxnResponse != null)
            {
                Console.WriteLine("RESULT = " + TrxnResponse.Result);
                Console.WriteLine("PNREF = " + TrxnResponse.Pnref);
                Console.WriteLine("RESPMSG = " + TrxnResponse.RespMsg);
                Console.WriteLine("AUTHCODE = " + TrxnResponse.AuthCode);
                Console.WriteLine("AVSADDR = " + TrxnResponse.AVSAddr);
                Console.WriteLine("AVSZIP = " + TrxnResponse.AVSZip);
                Console.WriteLine("IAVS = " + TrxnResponse.IAVS);
            }

            // Get the Fraud Response parameters.
            FraudResponse FraudResp =  Resp.FraudResponse;

            // Display Fraud Response parameter
            if (FraudResp != null)
            {
                Console.WriteLine("PREFPSMSG = " + FraudResp.PreFpsMsg);
                Console.WriteLine("POSTFPSMSG = " + FraudResp.PostFpsMsg);
            }

            // Display the response.
            Console.WriteLine(Environment.NewLine + PayflowUtility.GetStatus(Resp));    

            // Get the Transaction Context and check for any contained SDK specific errors (optional code).
            Context TransCtx = Resp.TransactionContext;
            if (TransCtx != null && TransCtx.getErrorCount() > 0)
            {
                Console.WriteLine(Environment.NewLine + "Transaction Errors = " + TransCtx.ToString());
            }
        }
        Console.WriteLine("Press Enter to Exit ...");
        Console.ReadLine();
    }
}
    }

以下是信用代码：

    using System;
    using PayPal.Payments.Common;
    using PayPal.Payments.Common.Utility;
    using PayPal.Payments.DataObjects;
    using PayPal.Payments.Transactions;

    namespace PayPal.Payments.Samples.CS.DataObjects.BasicTransactions
   {
/// <summary>
/// This class uses the Payflow SDK Data Objects to do a simple independent Credit transaction.
/// The request is sent as a Data Object and the response received is also a Data Object.
/// </summary>
public class DOCredit
{
    public DOCredit()
    {
    }

    public static void Main(string[] Args)
    {
        Console.WriteLine("------------------------------------------------------");
        Console.WriteLine("Executing Sample from File: DOCredit.cs");
        Console.WriteLine("------------------------------------------------------");

        // Create the Data Objects.
        // Create the User data object with the required user details.
        UserInfo User = new UserInfo("xxx", "xxx", "paypal", "a12");

        // Create the Payflow  Connection data object with the required connection details.
        // The PAYFLOW_HOST property is defined in the App config file.
        PayflowConnectionData Connection = new PayflowConnectionData();

        // Create a new Invoice data object with the Amount, Billing Address etc. details.
        Invoice Inv = new Invoice();

        // Set Amount.
        Currency Amt = new Currency(new decimal(1));
        Inv.Amt = Amt;
        Inv.PoNum = "PO12345";
        Inv.InvNum = "INV12345";

        // Set the Billing Address details.
        BillTo Bill = new BillTo();
        Bill.Street = "123 Main St.";
        Bill.Zip = "12345";
        Inv.BillTo = Bill;

        // Create a new Payment Device - Credit Card data object.
        // The input parameters are Credit Card Number and Expiration Date of the Credit Card.
        CreditCard CC = new CreditCard("5105105105105100", "0112");

        // Create a new Tender - Card Tender data object.
        CardTender Card = new CardTender(CC);
        ///////////////////////////////////////////////////////////////////

        // Create a new Credit Transaction.
        // Following is an example of a independent credit type of transaction.
        CreditTransaction Trans = new CreditTransaction(User, Connection, Inv, Card,
            PayflowUtility.RequestId);

        // Submit the Transaction
        Response Resp = Trans.SubmitTransaction();

        // Display the transaction response parameters.
        if (Resp != null)
        {
            // Get the Transaction Response parameters.
            TransactionResponse TrxnResponse =  Resp.TransactionResponse;

            if (TrxnResponse != null)
            {
                Console.WriteLine("RESULT = " + TrxnResponse.Result);
                Console.WriteLine("PNREF = " + TrxnResponse.Pnref);
                Console.WriteLine("RESPMSG = " + TrxnResponse.RespMsg);
                Console.WriteLine("AUTHCODE = " + TrxnResponse.AuthCode);
                Console.WriteLine("AVSADDR = " + TrxnResponse.AVSAddr);
                Console.WriteLine("AVSZIP = " + TrxnResponse.AVSZip);
                Console.WriteLine("IAVS = " + TrxnResponse.IAVS);
                Console.WriteLine("CVV2MATCH = " + TrxnResponse.CVV2Match);
                // If value is true, then the Request ID has not been changed and the original response
                // of the original transction is returned. 
                Console.WriteLine("DUPLICATE = " + TrxnResponse.Duplicate);
            }

            // Get the Fraud Response parameters.
            FraudResponse FraudResp =  Resp.FraudResponse;
            // Display Fraud Response parameter
            if (FraudResp != null)
            {
                Console.WriteLine("PREFPSMSG = " + FraudResp.PreFpsMsg);
                Console.WriteLine("POSTFPSMSG = " + FraudResp.PostFpsMsg);
            }

            // Display the response.
            Console.WriteLine(Environment.NewLine + PayflowUtility.GetStatus(Resp));    

            // Get the Transaction Context and check for any contained SDK specific errors (optional code).
            Context TransCtx = Resp.TransactionContext;
            if (TransCtx != null && TransCtx.getErrorCount() > 0)
            {
                Console.WriteLine(Environment.NewLine + "Transaction Errors = " + TransCtx.ToString());
            }
        }
        Console.WriteLine("Press Enter to Exit ...");
        Console.ReadLine();
    }
}
}

Payflow退款

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