Pro LINQ: Language Integrated Query in C# 2008

XPath

If you are accustomed to using XPath, you can also gain some XPath query capabilities thanks to the System.Xml.XPath.Extensions class in the System.Xml.XPath namespace. This class adds XPath search capability via extension methods.

Prototypes

Here is a list of some of the method prototypes available in the System.Xml.XPath.Extensions class:

XPathNavigator Extensions.CreateNavigator(this XNode node);
XPathNavigator Extensions.CreateNavigator(this XNode node, XmlNameTable nameTable);

object Extensions.XPathEvaluate(this XNode node, string expression);
object Extensions.XPathEvaluate(this XNode node, string expression,
  IXmlNamespaceResolver resolver); XElement Extensions.XPathSelectElement(this XNode node, string expression); XElement Extensions.XPathSelectElement(this ...