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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)

virtual property String^ Prefix {
	String^ get () override;
	void set (String^ value) override;

Property Value

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


This node is read-only


The specified prefix contains an invalid character.

The specified prefix is malformed.

The namespaceURI of this node is nullptr.

The specified prefix is "xml" and the namespaceURI of this node is different from

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.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
   XmlDocument^ doc = gcnew XmlDocument;
   doc->LoadXml( "<book xmlns:bk='urn:samples'>"
   "<title>Pride And Prejudice</title>"
   "</book>" );

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

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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