XmlDocument.IsReadOnly 属性
定义
重要
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获取一个值，该值指示当前节点是否是只读的。
public:
virtual property bool IsReadOnly { bool get(); };public override bool IsReadOnly { get; }member this.IsReadOnly : boolPublic Overrides ReadOnly Property IsReadOnly As Boolean属性值
如果当前节点为只读，则为 true；否则为 false。 XmlDocument 节点始终返回 false。
示例
下面的示例演示如何使用 IsReadOnly 属性。
#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
只读节点是无法更改其属性、属性或子节点的节点。 可以从树中删除只读节点，并将其插入到其他位置。
此属性是文档对象模型 (DOM) 的 Microsoft 扩展。