CODEWITHSUNDEEP
c#xmlxpath
Benny Ae
Benny Ae

Reputation: 2016

Select node with xpath

I want to go to a deep link for the xml with xpath, and also there is a name space in it. Currently I have:

XmlNode link = xmlDoc
    .SelectSingleNode("dn:feed", nsmgr)
    .SelectSingleNode("dn:entry", nsmgr)
    .SelectSingleNode("dn:link", nsmgr);

This works fine, but since the path is very long I just want to use kind of xpath like:

XmlNode link = xmlDoc.SelectSingleNode("dn:feed/entry/link", nsmgr);

But this does not works.

Upvotes: 0

Views: 92

Answers (1)

Jon Skeet
Jon Skeet

Reputation: 1499790

I suspect this is a namespace problem. You're only specifying the namespace for the feed element, not for entry or link. Try this:

XmlNode link = xmlDoc.SelectSingleNode("dn:feed/dn:entry/dn:link", nsmgr);

Personally I'd use LINQ to XML if possible though - aside from being a generally nicer API than XmlDocument, it makes it really easy to work with namespaces:

XDocument doc = ...;
XNamespace dn = "...";
XElement link = doc.Element(dn + "feed")
                   .Element(dn + "entry")
                   .Element(dn + "link");

I prefer expressing what I'm looking for (attributes, elements etc, with conditions where appropriate) in code rather than in XPath. Your mileage may vary, of course.

Upvotes: 3

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