XmlNode.RemoveAll 方法

定义

移除当前节点的所有子节点和/或属性。

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

示例

以下示例从根节点中删除所有子节点和属性节点。

#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.
   root->RemoveAll();
   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>" +
                "</book>");

    XmlNode root = doc.DocumentElement;

    //Remove all attribute and child nodes.
    root.RemoveAll();

    Console.WriteLine("Display the modified XML...");
    doc.Save(Console.Out);
  }
}
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>" & _
                    "</book>")
        
        Dim root As XmlNode = doc.DocumentElement
        
        'Remove all attribute and child nodes.
        root.RemoveAll()
        
        Console.WriteLine("Display the modified XML...")
        doc.Save(Console.Out)
    End Sub
End Class

注解

如果已知已删除的属性具有默认值,则会立即显示一个包含默认值的属性,并包含相应的命名空间 URI、本地名称和前缀(如果适用)。

此方法是文档对象模型 (DOM) 的Microsoft扩展。

继承者说明

在派生类中重写 RemoveAll 时,若要正确引发事件,必须调用 RemoveAll 基类的 方法。

适用于