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    copied!<p>You can use a combination of LINQ and XPathNavigator to extract the syndication extensions of a feed item (based on namespace URI of the extension). For item enclosures, you will want to examine the item links collection for links that have a RelationshipType of <em>enclosure</em>.</p> <p>Example:</p> <pre><code>HttpWebRequest webRequest = WebRequest.Create("http://www.pwop.com/feed.aspx?show=dotnetrocks&amp;filetype=master") as HttpWebRequest; using (Stream stream = webRequest.GetResponse().GetResponseStream()) { XmlReaderSettings settings = new XmlReaderSettings(); settings.IgnoreComments = true; settings.IgnoreWhitespace = true; using(XmlReader reader = XmlReader.Create(stream, settings)) { SyndicationFeed feed = SyndicationFeed.Load(reader); foreach(SyndicationItem item in feed.Items) { // Get values of syndication extension elements for a given namespace string extensionNamespaceUri = "http://www.itunes.com/dtds/podcast-1.0.dtd"; SyndicationElementExtension extension = item.ElementExtensions.Where&lt;SyndicationElementExtension&gt;(x =&gt; x.OuterNamespace == extensionNamespaceUri).FirstOrDefault(); XPathNavigator dataNavigator = new XPathDocument(extension.GetReader()).CreateNavigator(); XmlNamespaceManager resolver = new XmlNamespaceManager(dataNavigator.NameTable); resolver.AddNamespace("itunes", extensionNamespaceUri); XPathNavigator authorNavigator = dataNavigator.SelectSingleNode("itunes:author", resolver); XPathNavigator subtitleNavigator = dataNavigator.SelectSingleNode("itunes:subtitle", resolver); XPathNavigator summaryNavigator = dataNavigator.SelectSingleNode("itunes:summary", resolver); XPathNavigator durationNavigator = dataNavigator.SelectSingleNode("itunes:duration", resolver); string author = authorNavigator != null ? authorNavigator.Value : String.Empty; string subtitle = subtitleNavigator != null ? subtitleNavigator.Value : String.Empty; string summary = summaryNavigator != null ? summaryNavigator.Value : String.Empty; string duration = durationNavigator != null ? durationNavigator.Value : String.Empty; // Get attributes of &lt;enclosure&gt; element foreach (SyndicationLink enclosure in item.Links.Where&lt;SyndicationLink&gt;(x =&gt; x.RelationshipType == "enclosure")) { Uri url = enclosure.Uri; long length = enclosure.Length; string mediaType = enclosure.MediaType; } } } } </code></pre>
 

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