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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 Value

Type: System.String
The namespace URI of the current node; otherwise an empty string.

NoteNote:

In the .NET Framework version 2.0 release, the recommended practice is to create XmlReader instances using the 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
#using <mscorlib.dll>
#using <System.Xml.dll>
using namespace System;
using namespace System::IO;
using namespace System::Xml;

int main() {

   XmlTextReader* reader = 0;

   try {

      // Load the reader with the XML file.
      reader = new XmlTextReader(S"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(S"<{0}>", reader->LocalName);
            else {
               Console::Write(S"<{0}:{1}>", reader->Prefix, reader->LocalName);
               Console::WriteLine(S" The namespace URI is {0}", reader->NamespaceURI);
            }
         }
      }       

   } 
   __finally {
      if (reader != 0)
         reader->Close();
   }
}  

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 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0
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