10401 订单总数无效 ASP.NET C#

Question

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

我在使用 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.

这是我认为有问题的代码的一部分：

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;
    }
}

总订单被永久分配 (22.50) 并且仍然有问题。

任何提示？

Answer 1

价格被指定为

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

也许它应该是这样的

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

Answer 2

好的，问题解决了。 我必须在不同的班级中将 amt 更改为十进制。

所以贝宝订单的正确格式是：“xx.xx”

Answer 3

如果您的计算机使用十进制 komma，那么您应该将分配更改为：

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，请在下面的代码中查找 // <---------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;
    }
}