Rss20FeedFormatter<TSyndicationFeed> Classe

Definizione

generic <typename TSyndicationFeed>
 where TSyndicationFeed : SyndicationFeedgcnew()public ref class Rss20FeedFormatter : System::ServiceModel::Syndication::Rss20FeedFormatter

public class Rss20FeedFormatter<TSyndicationFeed> : System.ServiceModel.Syndication.Rss20FeedFormatter where TSyndicationFeed : SyndicationFeed, new()

type Rss20FeedFormatter<'SyndicationFeed (requires 'SyndicationFeed :> SyndicationFeed and 'SyndicationFeed : (new : unit -> 'SyndicationFeed))> = class
    inherit Rss20FeedFormatter

Public Class Rss20FeedFormatter(Of TSyndicationFeed)
Inherits Rss20FeedFormatter

Parametri di tipo

Ereditarietà

Object

SyndicationFeedFormatter

Rss20FeedFormatter

Rss20FeedFormatter<TSyndicationFeed>

Esempio

Il codice seguente illustra come creare una SyndicationFeed classe derivata e serializzarla in RSS 2.0.

           MySyndicationFeed feed = new MySyndicationFeed("Test Feed",
"This is a test feed", new Uri("http://Contoso/testfeed"), "TestFeedID", DateTime.Now);

           SyndicationItem item = new SyndicationItem("Test Item", "This is the content for Test Item", new Uri("http://Contoso/ItemOne"), "TestItemID", DateTime.Now);

           item.Links.Add(new SyndicationLink(new Uri("http://Contoso"), "alternate", "MyItemLink", "text/html", 100));
           item.PublishDate = new DateTime(1968, 2, 23);
           item.LastUpdatedTime = DateTime.Today;
           item.SourceFeed = feed;
           item.Summary = new TextSyndicationContent("This the item summary");

       List<SyndicationItem> items = new List<SyndicationItem>();
       items.Add(item);
           feed.Items = items;

           XmlWriter rssWriter = XmlWriter.Create("Rss.xml");
           Rss20FeedFormatter<MySyndicationFeed> rssFormatter = new Rss20FeedFormatter<MySyndicationFeed>(feed);
           rssFormatter.WriteTo(rssWriter);
           rssWriter.Close();

Dim feed As MySyndicationFeed = New MySyndicationFeed("Test Feed", "This is a test feed", New Uri("http://Contoso/testfeed"), "TestFeedID", DateTime.Now)
Dim item As SyndicationItem = New SyndicationItem("Test Item", "This is the content for Test Item", New Uri("http://Contoso/ItemOne"), "TestItemID", DateTime.Now)

item.Links.Add(New SyndicationLink(New Uri("http://Contoso"), "alternate", "MyItemLink", "text/html", 100))
item.PublishDate = New DateTime(1968, 2, 23)
item.LastUpdatedTime = DateTime.Today
item.SourceFeed = feed
item.Summary = New TextSyndicationContent("This the item summary")

Dim items As List(Of SyndicationItem) = New List(Of SyndicationItem)()
items.Add(item)
feed.Items = items

Dim rssWriter As XmlWriter = XmlWriter.Create("Rss.xml")
Dim rssFormatter As Rss20FeedFormatter(Of MySyndicationFeed) = New Rss20FeedFormatter(Of MySyndicationFeed)(feed)
rssFormatter.WriteTo(rssWriter)
rssWriter.Close()

Commenti

Utilizzare questa classe per serializzare le istanze delle SyndicationFeed classi derivate. Se è necessario serializzare un'istanza SyndicationFeed , usare invece il Rss20FeedFormatter formattatore.