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

定義

命名空間:

System.Xml.Linq

組件:

System.Xml.XDocument.dll

組件:

System.Xml.Linq.dll

組件:

netstandard.dll

傳回來源集合中每個文件和項目的子節點集合。

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)

類型參數

T

source 中物件的型別，限制為 XContainer。

參數

source

IEnumerable<T>

IEnumerable<T> 的 XNode，其中包含來源集合。

傳回

IEnumerable<XNode>

來源集合中每個文件和項目的子節點之 IEnumerable<T> 的 XNode。

範例

下列範例會擷取專案集合中每個節點的所有子節點，其名稱為 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  

這個範例會產生下列輸出：

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

備註

這個方法會使用延後的執行。

另請參閱

• Nodes()
• Elements
• InDocumentOrder<T>(IEnumerable<T>)
• LINQ to XML 概觀