How to get to a node in a namespaced xml file?

Question

I am trying to get a node out of an XML file and having a hell of a time. XML:

<?xml version="1.0" encoding="UTF-8"?>
<ApexPage xmlns="http://soap.sforce.com/2006/04/metadata">
    <apiVersion>26.0</apiVersion>
    <label>aaaWsPage2</label>
    <description></description>
    <rffolder>Robert Test</rffolder>
</ApexPage>

I tried the following code:

var doc = new XmlDocument();
doc.Load(@"c:\test.xml");

var mgr = new XmlNamespaceManager(doc.NameTable);
mgr.AddNamespace("ns1", @"http://soap.sforce.com/2006/04/metadata");

XmlElement root = doc.DocumentElement;

string query = @"/ns1:ApexClass/ns1:rffolder";
var xmlNode = root.SelectSingleNode(query);
if (xmlNode != null)
   Console.WriteLine(xmlNode.InnerXml);

xmlNode is always null or I get an exception on .SelectSingleNode. What am I missing here?

Any reason you are not using Linq to XML? the syntax is much easier to use. — Jay
– Jay, Commented Aug 5, 2013 at 22:23
@Jay Care to show me an example? I've never used Linq with XML. — AngryHacker
– AngryHacker, Commented Aug 5, 2013 at 22:26

I4V · Accepted Answer · 2013-08-05 22:25:41Z

4

I always find Linq To Xml easier to use

var xDoc = XDocument.Load(fname);
XNamespace ns = "http://soap.sforce.com/2006/04/metadata";

var folder = xDoc.Root.Element(ns + "rffolder").Value;

answered Aug 5, 2013 at 22:25

I4V

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Comments

Sushanth -- · Accepted Answer · 2015-08-09 22:53:16Z

2

can you please try this?

XmlElement root = doc.DocumentElement.SelectSingleNode(@"//ns1:ApexClass/ns1:rffolder) as XmlElement;

edited Aug 9, 2015 at 22:53

Sushanth --

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answered Aug 5, 2013 at 22:23

HappyLee

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Comments

sa_ddam213 · Accepted Answer · 2013-08-05 22:29:21Z

1

You can use LinqToXml

 var node = XElement.Load(@"C:\Test.xml")
                    .Element(XName.Get("rffolder","http://soap.sforce.com/2006/04/metadata"));

answered Aug 5, 2013 at 22:29

sa_ddam213

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Comments

Stephen · Accepted Answer · 2013-08-05 22:38:20Z

1

If you don't want to use Linq2Xml:

first of all, in the XML the root is called ApexPage, not ApexClass, and you forgot to pass the XmlNamespaceManager to the SelectSingleNode.

So:

string query = @"/ns1:ApexPage/ns1:rffolder";
var xmlNode = root.SelectSingleNode(query, mgr);

Should work as well

answered Aug 5, 2013 at 22:38

Stephen

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Comments

animuson · Accepted Answer · 2014-04-11 00:18:30Z

0

Try changing your query string to:

string query = "//ns1:ApexClass/ns1:rffolder";

edited Apr 11, 2014 at 0:18

animuson♦

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answered Aug 5, 2013 at 22:24

paulselles

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