Retrieving and XDocuments attribute value via linq

Question

'm having a problem figuring out the correct select statement here

I have the following XML

<configuration>
  <other sections>
  <runtime>
    <Binding xmlns="urn:schemas-microsoft-com:asm.v1">
      <probing Path="some path string" />
    </Binding>
    <Concurrent enabled="false" />
  </runtime>
  <other sections>
</configuration>

Im trying to do a select where I retrieve the Path string value

So far I have this

XDocument xdoc = XDocument.Load(XmlfilePath);

var query = (from c in xdoc.Descendants("probing")
where c.Attribute("Path") != null
select c.Attribute("Path").Value).FirstOrDefault();

But this doesn't work, query is null

Selman Genç · Accepted Answer · 2014-04-14 11:58:19Z

3

Because the name of your attribute is Path not privatePath.Also you can use explicit cast and then you don't need the null-check:

var query = (from c in xdoc.Descendants("probing")
             select (string)c.Attribute("Path")).FirstOrDefault();

Update: it seems your element has a namespace so you need to specify the namespace like this:

XNamespace ns = "urn:schemas-microsoft-com:asm.v1";

var query = (from c in xdoc.Descendants(ns + "probing")
             select (string)c.Attribute("Path")).FirstOrDefault();

You may want to take a look at the documentation for more details about xml namespaces: Working with XML Namespaces

edited Apr 14, 2014 at 11:58

answered Apr 14, 2014 at 11:31

Selman Genç

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2 Comments

Domitius Over a year ago

Sorry, for the example I made "privatePath" in the xml just Path, forgot to change the code sample. I tried your example just now, but its still null the query value

Selman Genç Over a year ago

@Domitius now I see the namespace sorry.I updated my answer try it again.

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