SyndicationFeed.ElementExtensions Proprietà

public:
 property System::ServiceModel::Syndication::SyndicationElementExtensionCollection ^ ElementExtensions { System::ServiceModel::Syndication::SyndicationElementExtensionCollection ^ get(); };

public System.ServiceModel.Syndication.SyndicationElementExtensionCollection ElementExtensions { get; }

member this.ElementExtensions : System.ServiceModel.Syndication.SyndicationElementExtensionCollection

Public ReadOnly Property ElementExtensions As SyndicationElementExtensionCollection

Valore della proprietà

SyndicationElementExtensionCollection Istanza che contiene le estensioni degli elementi nel feed.

Esempio

Nel codice seguente viene illustrato come aggiungere estensioni di elemento a un'istanza SyndicationFeed di .

SyndicationFeed feed = new SyndicationFeed();

// Add several different types of element extensions
feed.ElementExtensions.Add("simpleString", "", "hello, world!");
feed.ElementExtensions.Add("simpleString", "", "another simple string");

// DataContractExtension is a user-defined type marked with the DataContractAttribute
feed.ElementExtensions.Add( new DataContractExtension() {Key = "X", Value = 4});

// XmlSerializerExtension is a user-defined type that defines a ToString() method
feed.ElementExtensions.Add( new XmlSerializerExtension() {Key = "Y", Value = 8}, new XmlSerializer(typeof(XmlSerializerExtension)));

feed.ElementExtensions.Add(new XElement("xElementExtension", new XElement("Key", new XAttribute("attr1", "someValue"), "Z"),
    new XElement("Value", new XAttribute("attr1", "someValue"), "15")).CreateReader());

Dim feed As New SyndicationFeed()

' Add several different types of element extensions.
feed.ElementExtensions.Add("simpleString", "", "hello, world!")
feed.ElementExtensions.Add("simpleString", "", "another simple string")

'  DataContractExtension is a user-defined type marked with the DataContractAttribute
feed.ElementExtensions.Add(New DataContractExtension With {.Key = "X", .Value = 4})

'  XmlSerializerExtension is a user-defined type that defines a ToString() method
feed.ElementExtensions.Add(New XmlSerializerExtension With {.Key = "Y", .Value = 8}, New XmlSerializer(GetType(XmlSerializerExtension)))

feed.ElementExtensions.Add(New XElement("xElementExtension", _
                            New XElement("Key", New XAttribute("attr1", "someValue"), "Z"), _
                            New XElement("Value", New XAttribute("attr1", "someValue"), "15")).CreateReader())

Commenti

Le estensioni degli elementi sono elementi XML validi non specificati nelle specifiche Atom 1.0 o RSS 2.0. È possibile aggiungere qualsiasi elemento XML valido come estensione, purché lo spazio dei nomi sia diverso dallo spazio dei nomi contenitore.

<mg:MyElement xmlns:mg="http://myserver/elements" />

Per un esempio di aggiunta di estensioni degli elementi, vedere l'esempio Loosely-Typed Extensions .