Article
11/18/2011

Extensions.XPathSelectElements Method (XNode, String, IXmlNamespaceResolver)

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Selects a collection of elements using an XPath expression, resolving namespace prefixes using the specified IXmlNamespaceResolver.

Namespace: System.Xml.XPath
Assembly: System.Xml.XPath (in System.Xml.XPath.dll)

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Function XPathSelectElements ( _
    node As XNode, _
    expression As String, _
    resolver As IXmlNamespaceResolver _
) As IEnumerable(Of XElement)

public static IEnumerable<XElement> XPathSelectElements(
    this XNode node,
    string expression,
    IXmlNamespaceResolver resolver
)

Parameters

node
Type: System.Xml.Linq.XNode
The XNode on which to evaluate the XPath expression.

expression
Type: System.String
A String that contains an XPath expression.

resolver
Type: System.Xml.IXmlNamespaceResolver
A IXmlNamespaceResolver for the namespace prefixes in the XPath expression.

Return Value

Type: System.Collections.Generic.IEnumerable<XElement>
An IEnumerable<T> of XElement that contains the selected elements.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type XNode. When you use instance method syntax to call this method, omit the first parameter.

Remarks

You can use this method to evaluate XPath expressions that contain namespace prefixes.

Although the ordering of returned collections is not specified in the XML XPath Language 1.0 Recommendation, this extension method returns nodes in document order.

Note that nodes are returned in document order even when you use a reverse axis, such as preceding-sibling or ancestor-or-self.

Version Information

Silverlight

Supported in: 5, 4

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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