SyndicationFeed.ElementExtensions Propriedade

Definição

Namespace:

System.ServiceModel.Syndication

Assembly:

System.ServiceModel.Syndication.dll

Assemblies:

System.ServiceModel.dll, System.ServiceModel.Syndication.dll

Assembly:

System.ServiceModel.Web.dll

Assembly:

System.ServiceModel.dll

Assemblies:

System.ServiceModel.dll, System.ServiceModel.Web.dll

Obtém as extensões de elemento do feed.

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

Valor da propriedade

SyndicationElementExtensionCollection

Uma instância SyndicationElementExtensionCollection que contém as extensões de elemento no feed.

Exemplos

O código a seguir mostra como adicionar extensões de elemento a uma SyndicationFeed instância.

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())

Comentários

As extensões de elemento são elementos XML válidos que não são especificados nas especificações atom 1.0 ou RSS 2.0. Você pode adicionar qualquer elemento XML válido como uma extensão, desde que seu namespace seja diferente do namespace que inclui.

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

Para obter um exemplo de adição de extensões de elemento, consulte o exemplo extensões de tipo flexível .