Can somebody point out why this xpath is not working. I have also declared a namespacemanager but still XmlNodeList return null .



XML:

<manifest identifier="SingleCourseManifest" version="1.1"
          xmlns="..imsproject.org/xsd/imscp_rootv1p1p2"
          xmlns:adlcp="..adlnet.org/xsd/adlcp_rootv1p2"
          xmlns:xsi="..w3.org/2001/XMLSchema-instance"
...
          >
   <organizations default="B0">

      <organization identifier="B0">

         <title>Maritime Navigation</title>

         <item identifier="B100" isvisible="true">
            <title>Inland Rules of the Road (HTML Format)</title>

            <item identifier="S100001" identifierref="R_S100001" isvisible="true">
               <title>References and Lesson Objective</title>
            </item>

            <item identifier="B110" isvisible="true">
               <title>Steering & Sailing Rules</title>

               <item identifier="S110001" identifierref="R_S110001">
                  <title>Conduct of Vessels in any Condition of Visibility</title>
                  <adlcp:prerequisites type="aicc_script"><![CDATA[S100001]]></adlcp:prerequisites>
                  <adlcp:maxtimeallowed>0000:30:00.00</adlcp:maxtimeallowed>
               </item>

              .....


Code Behind

XmlDocument doc = new XmlDocument();
        doc.Load("c:\\Algebraic Expressions 2\\imsmanifest.xml");
        XmlNamespaceManager nsmgr = new XmlNamespaceManager(doc.NameTable);
       nsmgr.AddNamespace("adlcp", "url.adlnet.org/xsd/adlcp_rootv1p2");
        nsmgr.AddNamespace("xsd", "url.w3.org/2001/XMLSchema");
        nsmgr.AddNamespace("xsi", "url.w3.org/2001/XMLSchema-instance");
        nsmgr.AddNamespace("schemaLocation", "url.imsproject.org/xsd/imscp_rootv1p1p2 imscp_rootv1p1p2.xsd url.imsglobal.org/xsd/imsmd_rootv1p2p1 imsmd_rootv1p2p1.xsd url.adlnet.org/xsd/adlcp_rootv1p2 adlcp_rootv1p2.xsd");
           nsmgr.PushScope();


        XmlNodeList Nodelst = doc.SelectNodes("//item", nsmgr);

        foreach (XmlNode node in Nodelst)
        {

            Response.Write(node.Value);
        }

The XPATH is working, but its the wrong XPATH.



The clue is highlighted above - your XML elements are all in the default namespace. You haven't declared this namespace in your code, nor specified a namespace in the XPATH query.

Add the following line:

and then change the XPATH expression accordingly:

/- Sam Judson : Wrox Technical Editor -/

Thank you for ur reply.

i Solved it by adding the Namespace

nsmgr.AddNamespace("ns", "..imsproject.org/xsd/imscp_rootv1p1p2");

XmlNodeList Nodelst = doc.SelectNodes("//ns:item", nsmgr);