Get xelement value with namespaced xdocument in c#

I am not able to get xelement value if xdocument has namespace attribute. Here is my code:

string ts = @"<TestNameSpace xmlns='http://www.w3.org/2001/XMLSchema'>
  <requestID>
    <client>xxxx</client>
    <id>yyyy</id>
    <timestamp>zzzz</timestamp>
 </requestID>
</TestNameSpace>";
XDocument doc1 = XDocument.Parse(ts);
XElement reqID = doc1.Root.Element("requestID");

My problem is that reqID returns null data in the above c开发者_JAVA百科ode. If without xmlns attribute or empty value of xmlns, the reqID will get correct data.

Can anyone tell me what wrong in the above code?

Thank for advance.

---

You need to first define an XNamespace:

XNamespace ns = "http://www.w3.org/2001/XMLSchema";

and then use that in your query:

XDocument doc1 = XDocument.Parse(ts);
XElement reqID = doc1.Root.Element(ns + "requestID");

---

Try like this:

string xml = 
@"<TestNameSpace xmlns='http://www.w3.org/2001/XMLSchema'>
  <requestID>
    <client>xxxx</client>
    <id>yyyy</id>
    <timestamp>zzzz</timestamp>
 </requestID>
</TestNameSpace>";
var doc = XDocument.Parse(xml);
XNamespace ns = "http://www.w3.org/2001/XMLSchema";
var reqID = doc.Root.Element(ns + "requestID");