SyndicationFeed.AttributeExtensions Property

Gets a collection of attribute extensions.

Namespace:  System.ServiceModel.Syndication
Assembly:  System.ServiceModel.Syndication (in System.ServiceModel.Syndication.dll)


Public ReadOnly Property AttributeExtensions As Dictionary(Of XmlQualifiedName, String)
public Dictionary<XmlQualifiedName, string> AttributeExtensions { get; }

Property Value

Type: System.Collections.Generic.Dictionary<XmlQualifiedName, String>
A dictionary that contains a collection of attribute extensions.


An attribute extension is a valid XML attribute that is not specified in either the Atom 1.0 or RSS 2.0 specifications. When serialized to Atom 1.0, each custom attribute in the collection is written to the <atom> element. When serialized to RSS 2.0, each custom attribute is written to the <channel> element.

For an example of

adding an attribute extension, see the Loosely-Typed Extensions Sample sample.

Version Information


Supported in: 5, 4, 3


For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.