C#-XPath - Help with XPath Query and SOAP Response

[hary]

Hello,

I have a C# application that is consuming a C# WebService. I am calling a method on the WebService and it is sending me back a response which contains an XmlDocument:

string soapMessage = "<?xml version='1.0' encoding='utf-8'?><soap:Envelope xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xsd='http://www.w3.org/2001/XMLSchema'><soap:Body><validateStudent xmlns=\"http://tempuri.org/StudentResults/\"><studentID>" + txtStudentID.Text + "</studentID></validateStudent></soap:Body></soap:Envelope>";
HttpWebRequest req = (HttpWebRequest)WebRequest.Create("http://localhost/StudentResults/Results.asmx");
XmlDocument doc = new XmlDocument();
 
doc.LoadXml(soapMessage);
 
req.ContentType = "text/xml; charset=utf-8";
req.Accept = "text/xml";
req.Method = "POST";
req.Headers.Add("SOAPAction", @"http://tempuri.org/StudentResults/validateStudent");
Stream stm = req.GetRequestStream();
doc.Save(stm);
stm.Close();
WebResponse resp = req.GetResponse();
stm = resp.GetResponseStream();
StreamReader r = new StreamReader(stm);
 
XmlDocument response = new XmlDocument();
response.LoadXml(r.ReadToEnd());
 

Problem I have is that the Stream response

<?xml version="1.0" encoding="utf-8"?>
  <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <soap:Body>
      <validateStudentResponse xmlns="http://tempuri.org/StudentResults/">
        <validateStudentResult>
          <validateStudent xmlns="">
            <studentID>1234</studentID>
            <studentName>Andrew Harris</studentName>
          </validateStudent>
        </validateStudentResult>
      </validateStudentResponse>
    </soap:Body>
</soap:Envelope>

contains the SOAP envelope and I cant get the following XPath Query to return the relevant Node, the "name" XmlNode is always "Undefined"?

XmlNamespaceManager nsm = new XmlNamespaceManager(response.NameTable);
nsm.AddNamespace("soap","http://schemas.xmlsoap.org/soap/envelope/");
nsm.AddNamespace("sr","http://tempuri.org/StudentResults/");
 
XmlNode currentNode = response.DocumentElement.FirstChild;
XmlNode name = currentNode.SelectSingleNode("/soap:Envelope/soap:Body/sr:validateStudentResponse/validateStudentResult/validateStudent/studentID", nsm);

Any help appreciated.

Regards

Andrew

[hary]

Anyone able to help?

[kenobewan]

Have you tried stripping the soap envelope?