解析从服务器返回的SOAP Web服务XML响应

Question

我需要解析在调用SOAP Web服务时返回的XML响应。如果我将普通的XML字符串或文档传递给xDocument.Load()方法，则以下代码有效，但在传入响应XML时不起作用。

public static HttpWebRequest CreateWebRequest()
        {
            HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(@"http:localhost:15233/myservice.asmx");   
            webRequest.ContentType = "text/xml;charset=\"utf-8\"";
            webRequest.Accept = "text/xml";
            webRequest.Method = "POST";

            return webRequest;
        }

public void execute()
{

              HttpWebRequest request = CreateWebRequest();

               XmlDocument soapEnvelopeXml = new XmlDocument();
               soapEnvelopeXml.LoadXml(@"<?xml version='1.0' encoding='utf-8'?>
   <soap:Envelope xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xsd='http://www.w3.org/2001/XMLSchema' xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/'>
     <soap:Body>
       <Member xmlns='http://tempuri.org/'>
         <memdid>123</memid>
         <membername>Michael</membername>
         <location>Somewhere</location>        
       </Member>
     </soap:Body>
   </soap:Envelope>");

     using (Stream stream = request.GetRequestStream())
            {
                soapEnvelopeXml.Save(stream);
            }


            //Get the Response    
            HttpWebResponse wr = (HttpWebResponse)request.GetResponse();
            StreamReader rd = new StreamReader(wr.GetResponseStream());

           //The response to parse
           string xmlresponse = rd.ReadToEnd();


               StringReader sr = new StringReader(xmlresponse);
               XDocument doc = XDocument.Load(sr);

               //Response.Write(doc);
               var items = from p in doc.Descendants("MemResponse")
                           select new
                           {
                               Phone = p.Element("Phone").Value,
                               Email = p.Element("Email").Value
                           };
               foreach (var re in items)
               {
                   Response.Write(re.Phone);

               }


}

返回的xml响应具有以下格式：

    <?xml version="1.0" encoding="UTF-8"?> 
<MemResponse> 
<Phone>2554535</Phone> 
<Email>mail@mail</Email>
<UniqueNumber>we75546654</UniqueNumber>
 </MemResponse>

并且响应在代码中表示为：string xmlresponse