XmlNamedNodeMap.Item(Int32) 方法

定义

命名空间:

System.Xml

程序集:

System.Xml.dll, System.Xml.XmlDocument.dll

程序集:

System.Xml.ReaderWriter.dll

程序集:

System.Xml.XmlDocument.dll

程序集:

System.Xml.dll

程序集:

netstandard.dll

检索位于 XmlNamedNodeMap 中指定索引处的节点。

public:
 virtual System::Xml::XmlNode ^ Item(int index);

public virtual System.Xml.XmlNode Item (int index);

public virtual System.Xml.XmlNode? Item (int index);

abstract member Item : int -> System.Xml.XmlNode
override this.Item : int -> System.Xml.XmlNode

Public Overridable Function Item (index As Integer) As XmlNode

参数

index

Int32

要从 XmlNamedNodeMap 中检索的节点的索引位置。 索引是从零开始的；因此第一个节点的索引是 0，最后一个节点的索引是 Count -1。

返回

XmlNode

指定索引处的 XmlNode。 如果 index 小于 0 或大于等于 Count 属性，则返回 null。

示例

以下示例使用 XmlAttributeCollection 继承自 XmlNamedNodeMap) 的类 (来显示书籍的所有属性。

#using <System.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
   XmlDocument^ doc = gcnew XmlDocument;
   doc->LoadXml( "<book genre='novel' publicationdate='1997'>   <title>Pride And Prejudice</title></book>" );
   XmlAttributeCollection^ attrColl = doc->DocumentElement->Attributes;
   Console::WriteLine( "Display all the attributes for this book..." );
   for ( int i = 0; i < attrColl->Count; i++ )
   {
      Console::WriteLine( "{0} = {1}", attrColl->Item( i )->Name, attrColl->Item( i )->Value );

   }
}

using System;
using System.IO;
using System.Xml;

public class Sample
{
  public static void Main()
  {
     XmlDocument doc = new XmlDocument();
     doc.LoadXml("<book genre='novel' publicationdate='1997'> " +
                 "  <title>Pride And Prejudice</title>" +
                 "</book>");

     XmlAttributeCollection attrColl = doc.DocumentElement.Attributes;

     Console.WriteLine("Display all the attributes for this book...");
     for (int i=0; i < attrColl.Count; i++)
     {
        Console.WriteLine("{0} = {1}", attrColl.Item(i).Name, attrColl.Item(i).Value);
     }
  }
}

Imports System.IO
Imports System.Xml

public class Sample

  public shared sub Main()

    Dim doc as XmlDocument = new XmlDocument()
    doc.LoadXml("<book genre='novel' publicationdate='1997'> " & _
                "  <title>Pride And Prejudice</title>" & _
                "</book>")
                         
    Dim attrColl as XmlAttributeCollection = doc.DocumentElement.Attributes

    Console.WriteLine("Display all the attributes for this book...")
    Dim i As Integer
    For i = 0 To attrColl.Count - 1
       Console.WriteLine("{0} = {1}", attrColl.Item(i).Name,attrColl.Item(i).Value)
    Next
    
  end sub
end class