語言

XmlNamedNodeMap.Item(Int32) 方法

定義

擷取 . 中指定索引 XmlNamedNodeMap處的節點。

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

參數

index
Int32

要從 XmlNamedNodeMap中擷取的節點的索引位置。 該指數為零基;因此,第一個節點的索引為 0,最後一個節點的索引為 Count -1。

傳回

在指定的索引上。XmlNode 若 index 小於 0 或大於等於性質 Count ,則 null 返回 。

範例

以下範例使用 XmlAttributeCollection 類別(繼承自 XmlNamedNodeMap)來顯示書籍的所有屬性。

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

適用於