Question

我正在使用ASP.NET（Web-Form）和msdn的WingtipToys教程编写商店应用程序。

我使用paypal按钮时遇到问题。我有错误：

10401
Transaction refused because of an invalid argument. See additional error messages for details.
Order total is invalid.

这是我觉得错误的代码的一部分：

public bool ShortcutExpressCheckout(string amt, ref string token, ref string retMsg)
{
    if (bSandbox)
    {
        pEndPointURL = pEndPointURL_SB;
        host = host_SB;
    }

    string returnURL = "https://localhost:44317/Checkout/CheckoutReview.aspx";
    string cancelURL = "https://localhost:44317/Checkout/CheckoutCancel.aspx";

    NVPCodec encoder = new NVPCodec();
    encoder["METHOD"] = "SetExpressCheckout";
    encoder["RETURNURL"] = returnURL;
    encoder["CANCELURL"] = cancelURL;
    encoder["BRANDNAME"] = "Shop";
    encoder["PAYMENTREQUEST_0_AMT"] = amt;
    encoder["PAYMENTREQUEST_0_ITEMAMT"] = amt;
    encoder["PAYMENTREQUEST_0_PAYMENTACTION"] = "Sale";
    encoder["PAYMENTREQUEST_0_CURRENCYCODE"] = "PLN";

    // Get the Shopping Cart Products
    using (Shop.Logic.ShoppingCartActions myCartOrders = new Shop.Logic.ShoppingCartActions())
    {
        List<ElementKoszyka> myOrderList = myCartOrders.GetCartItems();

        for (int i = 0; i < myOrderList.Count; i++)
        {
            encoder["L_PAYMENTREQUEST_0_NAME" + i] = myOrderList[i].Produkt.nazwa_produkt.ToString();
           // string tmp = Math.Round(myOrderList[i].Produkt.cena, 2).ToString();
           // encoder["L_PAYMENTREQUEST_0_AMT" + i] = Math.Round(myOrderList[i].Produkt.cena, 2).ToString();
            encoder["L_PAYMENTREQUEST_0_AMT" + i] = "22.50";
            encoder["L_PAYMENTREQUEST_0_QTY" + i] = myOrderList[i].ilosc.ToString();
        }
    }

    string pStrrequestforNvp = encoder.Encode();
    string pStresponsenvp = HttpCall(pStrrequestforNvp);

    NVPCodec decoder = new NVPCodec();
    decoder.Decode(pStresponsenvp);

    string strAck = decoder["ACK"].ToLower();
    if (strAck != null && (strAck == "success" || strAck == "successwithwarning"))
    {
        token = decoder["TOKEN"];
        string ECURL = "https://" + host + "/cgi-bin/webscr?cmd=_express-checkout" + "&token=" + token;
        retMsg = ECURL;
        return true;
    }
    else
    {
        retMsg = "ErrorCode=" + decoder["L_ERRORCODE0"] + "&" +
            "Desc=" + decoder["L_SHORTMESSAGE0"] + "&" +
            "Desc2=" + decoder["L_LONGMESSAGE0"];
        return false;
    }
}

总订单永久分配（22.50）并仍有问题。

任何提示？

Answer 1

价格是在

指定的

encoder["L_PAYMENTREQUEST_0_AMT" + i] = "22.50";

也许它应该像

encoder["L_PAYMENTREQUEST_0_AMT" + i] = myOrderList[i].Produkt.nazwa_price.ToString();

Answer 2

好吧，问题解决了。我必须在不同的类中将amt更改为十进制。

因此，paypal订单的正确格式为：“xx.xx”

Answer 3

如果您的计算机使用小数komma，那么您应该将作业更改为：

encoder["L_PAYMENTREQUEST_0_AMT" + i] = (myOrderList[i].Produkt.nazwa_price.ToString()).Replace(",",".");

Answer 4

我也有同样的问题。原因是波兰的十进制格式不同。要查看要更改的行，请在下面的代码中// // <--------- SOLUTION ------------>注释：

public bool ShortcutExpressCheckout(string amt, ref string token, ref string retMsg)
{
    if (bSandbox)
    {
        pEndPointURL = pEndPointURL_SB;
        host = host_SB;
    }

    string returnURL = "https://localhost:44304/Checkout/CheckoutReview.aspx";
    string cancelURL = "https://localhost:44304/Checkout/CheckoutCancel.aspx";

    amt = amt.Replace(",",".");  // <---------SOLUTION------------>

    NVPCodec encoder = new NVPCodec();
    encoder["METHOD"] = "SetExpressCheckout";
    encoder["RETURNURL"] = returnURL;
    encoder["CANCELURL"] = cancelURL;
    encoder["BRANDNAME"] = "Wingtip Toys Sample Application";
    encoder["PAYMENTREQUEST_0_AMT"] = amt;
    encoder["PAYMENTREQUEST_0_ITEMAMT"] = amt;
    encoder["PAYMENTREQUEST_0_PAYMENTACTION"] = "Sale";
    encoder["PAYMENTREQUEST_0_CURRENCYCODE"] = "PLN";

    // Get the Shopping Cart Products
    using (WingtipToys.Logic.ShoppingCartActions myCartOrders = new WingtipToys.Logic.ShoppingCartActions())
    {
        List<CartItem> myOrderList = myCartOrders.GetCartItems();

        for (int i = 0; i < myOrderList.Count; i++)
        {
            encoder["L_PAYMENTREQUEST_0_NAME" + i] = myOrderList[i].Product.ProductName.ToString();
            encoder["L_PAYMENTREQUEST_0_AMT" + i] = myOrderList[i].Product.UnitPrice.ToString().Replace(",", ".");  // <---------SOLUTION------------>
            encoder["L_PAYMENTREQUEST_0_QTY" + i] = myOrderList[i].Quantity.ToString();
        }
    }

    string pStrrequestforNvp = encoder.Encode();
    string pStresponsenvp = HttpCall(pStrrequestforNvp);

    NVPCodec decoder = new NVPCodec();
    decoder.Decode(pStresponsenvp);

    string strAck = decoder["ACK"].ToLower();
    if (strAck != null && (strAck == "success" || strAck == "successwithwarning"))
    {
        token = decoder["TOKEN"];
        string ECURL = "https://" + host + "/cgi-bin/webscr?cmd=_express-checkout" + "&token=" + token;
        retMsg = ECURL;
        return true;
    }
    else
    {
        retMsg = "ErrorCode=" + decoder["L_ERRORCODE0"] + "&" +
            "Desc=" + decoder["L_SHORTMESSAGE0"] + "&" +
            "Desc2=" + decoder["L_LONGMESSAGE0"];
        return false;
    }
}

10401订单总数无效ASP.NET C＃

4 个答案: