How do I find XML nodes which don't contain an attribute using XPath?

0
votes

I'm using XPath in VB.net with the following XML:

<bookstore>

<book>
  <title lang="eng">Harry Potter</title>
  <price>29.99</price>
</book>

<book>
  <title lang="eng">Learning XML</title>
  <price>39.95</price>
</book>

<book>
  <title>English-French Dictionary</title>
  <price>29.95</price>
</book>

</bookstore>

According to this guide, it's easy to get a list of nodes which have a particular attributes.

//title[@lang]
Selects all the title elements that have an attribute named lang

But how do you get the list of nodes which don't have a particular attribute? (e.g. The third book above, which has no lang attribute.)

1
xmlvb.netxpath

1 Answers

1
votes

You can use:

//title[not(@lang)]