XmlNode.RemoveAll 方法


移除当前节点的所有子节点和/或属性。Removes all the child nodes and/or attributes of the current node.

 virtual void RemoveAll();
public virtual void RemoveAll ();
abstract member RemoveAll : unit -> unit
override this.RemoveAll : unit -> unit
Public Overridable Sub RemoveAll ()


下面的示例从根节点中删除所有子节点和属性节点。The following example removes all child and attribute nodes from the root node.

#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' ISBN='1-861001-57-5'>"
   "<title>Pride And Prejudice</title>"
   "</book>" );
   XmlNode^ root = doc->DocumentElement;
   //Remove all attribute and child nodes.
   Console::WriteLine( "Display the modified XML..." );
   doc->Save( Console::Out );

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

public class Sample {

  public static void Main() {

    XmlDocument doc = new XmlDocument();
    doc.LoadXml("<book genre='novel' ISBN='1-861001-57-5'>" +
                "<title>Pride And Prejudice</title>" +

    XmlNode root = doc.DocumentElement;

    //Remove all attribute and child nodes.

    Console.WriteLine("Display the modified XML...");
Option Explicit
Option Strict

Imports System.IO
Imports System.Xml

Public Class Sample
    Public Shared Sub Main()
        Dim doc As New XmlDocument()
        doc.LoadXml("<book genre='novel' ISBN='1-861001-57-5'>" & _
                    "<title>Pride And Prejudice</title>" & _
        Dim root As XmlNode = doc.DocumentElement
        'Remove all attribute and child nodes.
        Console.WriteLine("Display the modified XML...")
    End Sub
End Class


如果已知已删除的属性具有默认值,则会立即出现一个属性,其中包含默认值和相应的命名空间 URI、本地名称和前缀(如果适用)。If a removed attribute is known to have a default value, an attribute immediately appears containing the default value and, if applicable, the corresponding namespace URI, local name, and prefix.

此方法是文档对象模型(DOM)的 Microsoft 扩展。This method is a Microsoft extension to the Document Object Model (DOM).


当在派生类中重写 RemoveAll 时,为了正确引发事件,必须调用基类的 RemoveAll 方法。When overriding RemoveAll in a derived class, in order for events to be raised correctly, you must call the RemoveAll method of the base class.