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XmlNode.Prefix Property

Gets or sets the namespace prefix of this node.

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

public virtual string Prefix { get; set; }

Property Value

Type: System.String
The namespace prefix of this node. For example, Prefix is bk for the element <bk:book>. If there is no prefix, this property returns String.Empty.

ExceptionCondition
ArgumentException

This node is read-only.

XmlException

The specified prefix contains an invalid character.

The specified prefix is malformed.

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

This node is an attribute and the specified prefix is "xmlns" and the namespaceURI of this node is different from "http://www.w3.org/2000/xmlns/ ".

This node is an attribute and the qualifiedName of this node is "xmlns".

Setting this property, when permitted, changes the Name property, which holds the qualified name, on Element and Attribute nodes. Setting this property on node types that cannot have a prefix (such as Text, Comment, EntityReference, CDATA, ProcessingInstruction, Document, and DocumentFragment) has no effect. Changing the prefix of an attribute that is known to have a default value, does not make a new attribute with the default value and the original prefix appear, since the namespace URI and local name do not change.

Notes to Inheritors

When overriding Prefix in a derived class, this property cannot be set.

.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.

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