Getting started with xpath Finding elements containing specific text Namespaces Select nodes with names equal to or containing some string Find nodes that have a specific attribute Get the count of nodes Location paths and axes Finding elements containing specific attributes Get nodes relative to the current node Select nodes based on their children Check if a node is present Check if a node's text is empty

Namespaces

Remarks:

XPath 1.0 doesn't have the concept of a default namespace.

Also, the namespace prefixes defined in the original XML document do not affect XPath - namespace prefixes have to be explicitly registered with the XPath provider, otherwise prefixes can't be used at all in the XPath expression.

Namespace aware functions

<root xmlns="http://test/">
    <element xmlns:example="http://foobar/">
        <example:hello_world attribute="another example" />
    </element>
</root>

The expression /root will return nothing, because there is no non-namespaced element called root at the root level of the document. However, The following will return the <root xmlns="http://test/"> element.

/*[namespace-uri() = 'http://test/' and local-name() = 'root']

Contributors

Topic Id: 2324

Example Ids: 7631

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