XmlTextReader.Prefix Property

Definition

Namespace:

System.Xml

Assembly:

System.Xml.ReaderWriter.dll

Source:

XmlTextReader.cs

Gets the namespace prefix associated with the current node.

public:
 virtual property System::String ^ Prefix { System::String ^ get(); };

public override string Prefix { get; }

member this.Prefix : string

Public Overrides ReadOnly Property Prefix As String

Property Value

String

The namespace prefix associated with the current node.

Examples

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

#using <System.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
   XmlTextReader^ reader = nullptr;
   try
   {
      
      // Load the reader with the XML file.
      reader = gcnew 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 {0}", reader->NamespaceURI );
            }
         }
      }
   }
   finally
   {
      if ( reader != nullptr )
            reader->Close();
   }

}

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

Imports System.IO
Imports System.Xml

Public Class Sample
    
    Public Shared Sub Main()
        Dim reader As XmlTextReader = Nothing
        
        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() Then
                    If reader.Prefix = String.Empty Then
                        Console.WriteLine("<{0}>", reader.LocalName)
                    Else
                        Console.Write("<{0}:{1}>", reader.Prefix, reader.LocalName)
                        Console.WriteLine(" The namespace URI is " & reader.NamespaceURI)
                    End If
                End If
            End While
        
        Finally
            If Not (reader Is Nothing) Then
                reader.Close()
            End If
        End Try
    End Sub
End Class

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>

Remarks

Note

Starting with the .NET Framework 2.0, we recommend that you create XmlReader instances by using the XmlReader.Create method to take advantage of new functionality.

See also

• XmlReader