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XmlElement.Prefix Property

Gets or sets the namespace prefix of this node.

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

public override string Prefix { get; set; }
/** @property */
public String get_Prefix ()

/** @property */
public void set_Prefix (String value)

public override function get Prefix () : String

public override function set Prefix (value : String)

Property Value

The namespace prefix of this node. If there is no prefix, this property returns String.Empty.

Exception typeCondition

ArgumentException

This node is read-only

XmlException

The specified prefix contains an invalid character.

The specified prefix is malformed.

The namespaceURI of this node is a null reference (Nothing in Visual Basic).

The specified prefix is "xml" and the namespaceURI of this node is different from http://www.w3.org/XML/1998/namespace.

Setting this property changes the Name property, which holds the qualified name for an XmlElement. However, changing the prefix does not change the namespace URI of the element.

The following example displays information on the ISBN element.

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

public class Sample
{
  public static void Main()
  {

    XmlDocument doc = new XmlDocument();
    doc.LoadXml("<book xmlns:bk='urn:samples'>" +
                "<bk:ISBN>1-861001-57-5</bk:ISBN>" +
                "<title>Pride And Prejudice</title>" +
                "</book>");

    // Display information on the ISBN element.
    XmlElement elem = (XmlElement) doc.DocumentElement.FirstChild;
    Console.Write("{0}:{1} = {2}", elem.Prefix, elem.LocalName, elem.InnerText);
    Console.WriteLine("\t namespaceURI=" + elem.NamespaceURI);

  }
}

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

public class Sample
{
    public static void main(String[] args)
    {
        XmlDocument doc = new XmlDocument();
        doc.LoadXml("<book xmlns:bk='urn:samples'>"
            + "<bk:ISBN>1-861001-57-5</bk:ISBN>" 
            + "<title>Pride And Prejudice</title>" 
            + "</book>");

        // Display information on the ISBN element.
        XmlElement elem = 
            (XmlElement)doc.get_DocumentElement().get_FirstChild();

        Console.Write("{0}:{1} = {2}",elem.get_Prefix(), elem.get_LocalName(), 
            elem.get_InnerText());
        Console.WriteLine("\t namespaceURI=" + elem.get_NamespaceURI());
    } //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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