Export (0) Print
Expand All

XContainer.Descendants Method (XName)

Returns a filtered collection of the descendant elements for this document or element, in document order. Only elements that have a matching XName are included in the collection.

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

'Declaration
Public Function Descendants ( _
	name As XName _
) As IEnumerable(Of XElement)

Parameters

name
Type: System.Xml.Linq.XName

The XName to match.

Return Value

Type: System.Collections.Generic.IEnumerable(Of XElement)
An IEnumerable(Of T) of XElement containing the descendant elements of the XContainer that match the specified XName.

This method uses deferred execution.

The following example prints all descendants of an element.

' Attributes are not nodes, so will not be returned by the descendants axis.
Dim xmlTree As XElement = _ 
    <Root Att1="AttributeContent">
         <Child>Some text
             <GrandChild>element content</GrandChild>
         </Child>
     </Root>

Dim de = From el In xmlTree...<Child> _
         Select el

For Each el In de
    Console.WriteLine(el.Name)
Next

This example produces the following output:

Child

The following is the same example, but in this case the XML is in a namespace. For more information, see Working with XML Namespaces.

Imports <xmlns:aw = "http://www.adventure-works.com">

Module Module1
    Sub Main()
        ' Attributes are not nodes, so will not be returned by the descendants axis.
        Dim xmlTree As XElement = _ 
            <aw:Root aw:Att1="AttributeContent">
                 <aw:Child>Some text
                     <aw:GrandChild>element content</aw:GrandChild>
                 </aw:Child>
             </aw:Root>

        Dim de = From el In xmlTree...<aw:Child> _
                 Select el

        For Each el In de
            Console.WriteLine(el.Name)
        Next
    End Sub
End Module

This example produces the following output:

{http://www.adventure-works.com}Child

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Show:
© 2014 Microsoft