Extensions.Nodes<T>(IEnumerable<T>) Method

Reference

Definition

Namespace:: System.Xml.Linq

Assemblies:: System.Xml.Linq.dll, System.Xml.XDocument.dll

Assemblies:: netstandard.dll, System.Xml.XDocument.dll

Assembly:: System.Xml.XDocument.dll

Assembly:: System.Xml.Linq.dll

Assembly:: netstandard.dll

Source:: Extensions.cs

Source:: Extensions.cs

Source:: Extensions.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Returns a collection of the child nodes of every document and element in the source collection.

public:
generic <typename T>
 where T : System::Xml::Linq::XContainer[System::Runtime::CompilerServices::Extension]
 static System::Collections::Generic::IEnumerable<System::Xml::Linq::XNode ^> ^ Nodes(System::Collections::Generic::IEnumerable<T> ^ source);

public static System.Collections.Generic.IEnumerable<System.Xml.Linq.XNode> Nodes<T>(this System.Collections.Generic.IEnumerable<T> source) where T : System.Xml.Linq.XContainer;

public static System.Collections.Generic.IEnumerable<System.Xml.Linq.XNode> Nodes<T>(this System.Collections.Generic.IEnumerable<T?> source) where T : System.Xml.Linq.XContainer;

static member Nodes : seq<'T (requires 'T :> System.Xml.Linq.XContainer)> -> seq<System.Xml.Linq.XNode> (requires 'T :> System.Xml.Linq.XContainer)

<Extension()>
Public Function Nodes(Of T As XContainer) (source As IEnumerable(Of T)) As IEnumerable(Of XNode)

<Extension()>
Public Iterator Function Nodes(Of T As XContainer) (source As IEnumerable(Of T)) As IEnumerable(Of XNode)

Type Parameters

T

The type of the objects in source, constrained to XContainer.

Parameters

source: IEnumerable<T>

An IEnumerable<T> of XNode that contains the source collection.

Returns

IEnumerable<XNode>

An IEnumerable<T> of XNode of the child nodes of every document and element in the source collection.

Examples

The following example retrieves all of the child nodes for every node in a collection of elements with the name of Child.

XElement xmlTree = XElement.Parse(  
    @"<Root><Child>aaa<GrandChild>Text</GrandChild>bbb</Child>" +  
    @"<Child>ccc<GrandChild>Text</GrandChild>ddd</Child></Root>");  
IEnumerable<XNode> nodes = xmlTree.Elements("Child").Nodes();  

foreach (XNode node in nodes)  
{  
    switch (node.NodeType)  
    {  
        case XmlNodeType.Element:  
            Console.WriteLine("Element: {0}", ((XElement)node).Name);  
            break;  
        case XmlNodeType.Text:  
            Console.WriteLine("Text: {0}", ((XText)node).Value);  
            break;  
    }  
}

Dim xmlTree As XElement = _  
    <Root>  
        <Child>aaa<GrandChild>Text</GrandChild>bbb</Child>  
        <Child>ccc<GrandChild>Text</GrandChild>ddd</Child>  
    </Root>  

Dim nodes = xmlTree.<Child>.Nodes()  

' Note that XNode uses XmlNodeType, which is in the System.Xml namespace.  
For Each node As XNode In nodes  
    Select Case node.NodeType  
        Case XmlNodeType.Element  
            Console.WriteLine("Element: {0}", DirectCast(node, XElement).Name)  
        Case XmlNodeType.Text  
            Console.WriteLine("Text: {0}", DirectCast(node, XText).Value)  
    End Select  
Next

This example produces the following output:

Text: aaa  
Element: GrandChild  
Text: bbb  
Text: ccc  
Element: GrandChild  
Text: ddd

Remarks

This method uses deferred execution.

Applies to

Продукт	Версии
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	1.0, 1.1, 1.2, 1.3, 1.4, 1.6, 2.0, 2.1
UWP	10.0

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