循环返回 XML 结果并赋值

Question

我目前正在调用一个外部 MVC 控制器并传入两个参数，这两个参数传回 XML 结果我目前的操作如下，请注意我在 [=11= 方面的经验] 几乎是 0

 try
     {
         var url = ConfigurationManager.AppSettings["url"] + String.Format("/ws/RetailerBrandsFiltered?postcode={0}&countryCode={1}", model.Postcode, model.SelectedCountry);

         // Create the request to call the external mvc controller to retrieve the retailers
         var req = (HttpWebRequest)WebRequest.Create(url);
         req.Method = "GET";
         req.ContentType = "xml";

         // Do the request to external controller
         var stIn = new StreamReader(req.GetResponse().GetResponseStream());
         var responce = stIn.ReadToEnd();

         foreach (var item in responce)
         {
             string urn = item["URN"].InnerText
         }

     }
     catch (Exception ex)
     {
         Console.WriteLine(ex);
     }

我正在尝试遍历响应并取出 XML 节点并将它们分配给一个模型（我还没有实现）但是为了测试我正在尝试获取第一个值并将其分配给字符串。

这不起作用，消息是无法将索引应用于类型 char，理想情况下我的 for 循环看起来像这样。

 foreach (var item in responce)
 {
     string urn = item["URN"].InnerText;
     string name = item["NAME"].InnerText;
     string address = item["ADDRESS"].InnerText;
 }

同样，一旦它起作用，我将用模型绑定替换字符串。任何帮助将不胜感激

Answer 1

变量 reponce 是一个字符串，当您尝试对其进行迭代时，您隐式地将字符串转换为 char[] 并对其进行迭代。

将流加载到 XDocument 并使用 Linq 获取值：

try
{
     var url = ConfigurationManager.AppSettings["url"] + string.Format("/ws/RetailerBrandsFiltered?postcode={0}&countryCode={1}", model.Postcode, model.SelectedCountry);

     // Create the request to call the external mvc controller to retrieve the retailers
     var req = (HttpWebRequest)WebRequest.Create(url);
     req.Method = "GET";
     req.ContentType = "xml";

     // Do the request to external controller
     var xDoc = XDocument.Load(req.GetResponse().GetResponseStream());

     // Get some nodes
     var items = xDoc.Descendants("item");

     foreach(var item in items)
     {
         string urn = item.Element("URN").Single().Value;
         // Do more stuff
     }

 }
 catch (Exception ex)
 {
     Console.WriteLine(ex);
 }

请参阅 MSDN article and this Stack Overflow question 了解更多详情。

循环返回 XML 结果并赋值

Loop through returned XML Result and assign values

c#

xml

xmlnode