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XmlDocument.IsReadOnly Property

Gets a value indicating whether the current node is read-only.

Namespace: System.Xml
Assembly: System.Xml (in system.xml.dll)

public override bool IsReadOnly { get; }
/** @property */
public boolean get_IsReadOnly ()

public override function get IsReadOnly () : boolean

Property Value

true if the current node is read-only; otherwise false. XmlDocument nodes always return false.

A read-only node is one whose properties, attributes, or children cannot be changed. You can remove a read-only node from the tree and insert it somewhere else.

This property is a Microsoft extension to the Document Object Model (DOM).

The following example shows how to use the IsReadOnly property.

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

public class Sample
{
  public static void Main()
  {
    //Create the XmlDocument.
    XmlDocument doc = new XmlDocument();
    doc.LoadXml("<!DOCTYPE book [<!ENTITY h 'hardcover'>]>" +
                "<book genre='novel' ISBN='1-861001-57-5'>" +
                "<title>Pride And Prejudice</title>" +
                "<style>&h;</style>" +
                "</book>");

    //Determine whether the node is read-only.
    if (doc.DocumentElement.LastChild.FirstChild.IsReadOnly)
       Console.WriteLine("Entity reference nodes are always read-only");

  }
}

import System.*;
import System.IO.*;
import System.Xml.*;

public class Sample
{
    public static void main(String[] args)
    {
        //Create the XmlDocument.
        XmlDocument doc = new XmlDocument();
        doc.LoadXml("<!DOCTYPE book [<!ENTITY h 'hardcover'>]>"
                    + "<book genre='novel' ISBN='1-861001-57-5'>"
                    + "<title>Pride And Prejudice</title>"
                    + "<style>&h;</style>"
                    + "</book>");

        //Check if the node is read-only.
        if (doc.get_DocumentElement().get_LastChild().
                get_FirstChild().get_IsReadOnly()) {
            Console.WriteLine("Entity reference nodes are always read-only");
        }
    } //main
} //Sample

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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