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XmlTextReader.NamespaceURI Property

Gets the namespace URI (as defined in the W3C Namespace specification) of the node on which the reader is positioned.

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

public override string NamespaceURI { get; }
/** @property */
public String get_NamespaceURI ()

public override function get NamespaceURI () : String

Property Value

The namespace URI of the current node; otherwise an empty string.

NoteNote

In the Microsoft .NET Framework version 2.0 release, the recommended practice is to create XmlReader instances using the System.Xml.XmlReader.Create method. This allows you to take full advantage of the new features introduced in this release. For more information, see Creating XML Readers.

This property is relevant to Element and Attribute nodes only.

The following example displays the local name of each node, and, if they exist, the prefix and namespace URI.

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

public class Sample {

  public static void Main() {
  
    XmlTextReader reader = null;

    try {

       // Load the reader with the XML file.
       reader = new XmlTextReader("book2.xml");
  
       // Parse the file.  If they exist, display the prefix and 
       // namespace URI of each node.
       while (reader.Read()) {
         if (reader.IsStartElement()) {
           if (reader.Prefix==String.Empty)
              Console.WriteLine("<{0}>", reader.LocalName);
           else {
               Console.Write("<{0}:{1}>", reader.Prefix, reader.LocalName);
               Console.WriteLine(" The namespace URI is " + reader.NamespaceURI);
           }
         }
       }       

     } 
     finally {
        if (reader != null)
          reader.Close();
      }
  }  
} // End class

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

public class Sample
{
    public static void main(String[] args)
    {
        XmlTextReader reader = null;
        try {

            // Load the reader with the XML file.
            reader = new XmlTextReader("book2.xml");

            // Parse the file.  If they exist, display the prefix and 
            // namespace URI of each node.
            while(reader.Read()) {
                if (reader.IsStartElement()) {
                    if (reader.get_Prefix().Equals(String.Empty)) {
                        Console.WriteLine("<{0}>", reader.get_LocalName());
                    }
                    else {
                        Console.Write("<{0}:{1}>", reader.get_Prefix(), 
                            reader.get_LocalName());
                        Console.WriteLine(" The namespace URI is " 
						    + reader.get_NamespaceURI());
                    }
                }
            }
        }
        finally {
            if (reader != null) {
                reader.Close();
            }
        }
    } //main
} // End class Sample

The example uses the file, book2.xml, as input.


<book xmlns:bk='urn:samples'>
  <title>Pride And Prejudice</title>
  <bk:genre>novel</bk:genre>
</book>

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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