Chapter 6. Navigating XML with XPath
Once you have an XmlDocument in memory, you could
choose to navigate through its nodes by using
XmlNodeReader to read each node and do some action
if it was of the desired type. Or, you could recursively iterate
through its child nodes, interrogating each child
node’s node type and name, until you reach the one
you’re interested in. Or, you could use XPath.
In this chapter, I’ll introduce the XPath
specification, the syntax of XPath expressions, and some of its
typical uses. Then I’ll show you the
System.Xml.XPath assembly, and how it allows you
to use XPath in your .NET applications. Finally,
I’ll go through some examples using XPath.
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