.NET Framework Class Library

System.Xml.XPath Namespace

The System.Xml.XPath namespace contains the XPath parser and evaluation engine. It supports the W3C XML Path Language (XPath) Version 1.0 Recommendation (www.w3.org/TR/xpath).

Namespace hierarchy

Classes

Class	Description
XPathDocument	Provides a fast, read-only cache for XML document processing using XSLT.
XPathException	The exception that is thrown when an error occurs when processing an XPath expression.
XPathExpression	Encapsulates a compiled XPath expression. This class is returned as a result of a call to Compile and is used by the Select, Evaluate and Matches methods.
XPathNavigator	Reads data from any data store using a cursor model.
XPathNodeIterator	Provides an iterator over a set of selected nodes.

Interfaces

Interface	Description
IXPathNavigable	Provides an accessor to the XPathNavigator.

Enumerations

Enumeration	Description
XmlCaseOrder	Specifies the sort order for upper and lower case letters.
XmlDataType	Specifies the data type used to determine sort order.
XmlSortOrder	Specifies the sort order.
XPathNamespaceScope	Defines the namespace scope. The enumeration can be passed to the XPathNavigator.MoveToFirstNamespace and XPathNavigator.MoveToNextNamespace methods to specify the type of namespace node to move to.
XPathNodeType	Specifies the XPath node types that can be returned from the XPathNavigator. For more information on XPath node types, see the Data Model section of the W3C XML Path Language (XPath) Version 1.0 Recommendation located at http://www.w3.org/TR/xpath#data-model.
XPathResultType	Specifies the return type of the XPath expression.

See Also

.NET Framework Class Library