我在ASP.Net C#4.0中使用PayPal沙箱。我添加了以下Web引用:
https://www.paypalobjects.com/wsdl/PayPalSvc.wsdl
如果我有1件商品(请给我两件T恤),我可以将它传递给PayPal对象并完成我的交易,没有任何问题:
var item = new PayPalAPIHelper.PayPalWS.PaymentDetailsItemType
{
Quantity = 2, //etc...etc
};
var paymentDetails = new PayPalAPIHelper.PayPalWS.PaymentDetailsType();
paymentDetails.PaymentDetailsItem = new PaymentDetailsItemType[]{item};
现在我的困境是当顾客想要不同的物品(1件T恤,1条裤子)。现在我需要多个PaymentDetailsItemType对象传递给paymentDetails对象。我试过这个:
//now i have an array of different items
var items = new PayPalAPIHelper.PayPalWS.PaymentDetailsItemType[3];
items[0].Description = "T-shirt";
items[1].Description = "Jeans";
paymentDetails.PaymentDetailsItem = new PaymentDetailsItemType[]{items};
我收到此错误:
Cannot implicitly convert type 'PayPalAPIHelper.PayPalWS.PaymentDetailsItemType[]'
to 'PayPalAPIHelper.PayPalWS.PaymentDetailsItemType'
我可以这样做并编译:
paymentDetails.PaymentDetailsItem = new PaymentDetailsItemType[]{items[0],items[1]};
但是当我运行它时,当我调用PayPal服务时,我在元素'Quantity'中得到数据类型''不匹配:
PayPalAPIHelper.PayPalWS.PaymentDetailsType paymentDetails = new PayPalAPIHelper.PayPalWS.PaymentDetailsType();
paymentDetails.PaymentDetailsItem = new PayPalAPIHelper.PayPalWS.PaymentDetailsItemType[] { items[0],items[1] };
reqDetails.PaymentDetails = new PayPalAPIHelper.PayPalWS.PaymentDetailsType[] { paymentDetails };
PayPalAPIHelper.PayPalWS.SetExpressCheckoutReq req = new PayPalAPIHelper.PayPalWS.SetExpressCheckoutReq()
{
SetExpressCheckoutRequest = new PayPalAPIHelper.PayPalWS.SetExpressCheckoutRequestType()
{
Version = Version,
SetExpressCheckoutRequestDetails = reqDetails
}
};
// query PayPal and get token
//error occurs here
PayPalAPIHelper.PayPalWS.SetExpressCheckoutResponseType resp = BuildPayPalWebservice().SetExpressCheckout(req); //this is where the error occurs
如何将多种类型传递给PayPal API Web服务,以便用户可以订购不同的商品?提前致谢
答案 0 :(得分:2)
首先,你已经有了一个数组,所以仅仅为了分配到paymentDetails.PaymentDetailsItem
而创建一个新数组是没有意义的:
var items = new PayPalAPIHelper.PayPalWS.PaymentDetailsItemType[3];
…
paymentDetails.PaymentDetailsItem = items; // this is wrong: new PaymentDetailsItemType[]{items};
通过编写new PaymentDetailsItemType[]{items}
,您可以创建一个新数组并尝试使用另一个数组PaymentDetailsItemType
(类型为items
的内容)初始化其第一个项目(PaymentDetailsItemType[]
类型) - 因此不相容)。
其次,确保填充数组中所有项目的所有必需属性。最有可能的是,你应该做一件T恤和一件牛仔裤的例子:
items[0].Description = "T-shirt";
items[0].Quantity = 1;
items[1].Description = "Jeans";
items[1].Quantity = 1;