XmlDocument.IsReadOnly 属性

定义

获取一个值,该值指示当前节点是否是只读的。Gets a value indicating whether the current node is read-only.

public:
 virtual property bool IsReadOnly { bool get(); };
public override bool IsReadOnly { get; }
member this.IsReadOnly : bool
Public Overrides ReadOnly Property IsReadOnly As Boolean

属性值

如果当前节点为只读,则为 true;否则为 falsetrue if the current node is read-only; otherwise false. XmlDocument 节点始终返回 falseXmlDocument nodes always return false.

示例

下面的示例演示如何使用 IsReadOnly 属性。The following example shows how to use the IsReadOnly property.

#using <System.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
   
   //Create the XmlDocument.
   XmlDocument^ doc = gcnew 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->DocumentElement->LastChild->FirstChild->IsReadOnly )
      Console::WriteLine( "Entity reference nodes are always read-only" );
}

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");
  }
}
Option Explicit
Option Strict

Imports System.IO
Imports System.Xml

Public Class Sample
    
    Public Shared Sub Main()
        'Create the XmlDocument.
        Dim doc As 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 Then
            Console.WriteLine("Entity reference nodes are always read-only")
        End If 
    End Sub
End Class

注解

只读节点是指无法更改其属性、特性或子级的节点。A read-only node is one whose properties, attributes, or children cannot be changed. 可以从树中删除只读节点并将其插入到其他位置。You can remove a read-only node from the tree and insert it somewhere else.

此属性是文档对象模型 (DOM) 的 Microsoft 扩展。This property is a Microsoft extension to the Document Object Model (DOM).

适用于