Finding specific child node in namespace with XPath and asp.net XmlDocument

Question

I have an XmlDocument with namespaces, I need to find a specific child of an element with a specific attribute. I can get the parent, and I can get all the children, but I can't find an xpath expression to just get element (img) I want. I could go through the children and just find img elements, but I'd really like to find it with just one xpath expression.

The first SelectNodes gives me all children of the span with class='distinct'. I want only the img element. The second select returns 0 nodes.

If the namespace is not present in the expression or the xml, the second select will return the img element.

XML:

<p xmlns="blorf">
  <span class="distinct" >
    <img alt="" src="eq_54.png"/>
    <span class="other-span">
        <inner xmlns="scrubs">
            <x1/>
        </inner>
    </span>
  </span>
</p>

Code:

       ...
       doc.LoadXml(_xml);
        XmlNamespaceManager nsmgr = new XmlNamespaceManager(doc.NameTable);
        nsmgr.AddNamespace("a", "blorf");
        XmlNodeList list =  doc.SelectNodes("//a:span[@class='distinct']/*",nsmgr);
        Console.WriteLine("count is " + list.Count);

        list = doc.SelectNodes("//a:span[@class='distinct']/img", nsmgr);
        Console.WriteLine("count is " + list.Count);

Community · Accepted Answer · 2017-05-23 12:23:30Z

2

Use list = doc.SelectNodes("//a:span[@class='distinct']/a:img", nsmgr); and you will get back the img node.

Some explanation in this answer

edited May 23, 2017 at 12:23

CommunityBot

11 silver badge

answered Jan 19, 2016 at 23:01

Szabolcs Dézsi

8,84323 silver badges29 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Aaron Newman Over a year ago

This works, thanks. So this is just an xpath issue, not even asp.net. Namespace prefix is not 'inherited' like a default namespace would be - for whatever reason I was expecting that.

Collectives™ on Stack Overflow

Finding specific child node in namespace with XPath and asp.net XmlDocument

1 Answer 1

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related