Parsing a RDF RSS Feed | Tech Off

VB Man
Year of the Linux MCE.

Is there a built in .net class that can handle rdf xml docs?

I've been trying to parse this page : http://sanantonio.craigslist.org/sys/index.rss for quite some time but I can't figure it out.

Cupiditas
Chris Hawkins

There's no built in class (unless you consider the XmlReader et al to be helpful here) but there's libraries on Codeplex and the like.

VB Man
Year of the Linux MCE.

In reply to Cupiditas

#Nov 27th, 2008 @ 10:09 PM

I looked at third party controls to do the job but none will suffice. Is the file I'm trying to parse even valid?

Cupiditas
Chris Hawkins

In reply to VB Man

#Nov 28th, 2008 @ 8:08 AM

Looks valid to me. Internet Explorer picks it up fine.

You could always do this:

XmlDocument doc = new XmlDocument();
doc.Load(rssUrl);

foreach(XmlNode node in doc.FirstChild.ChildNodes)
{
    if(node.Name == "channel")
    {
        // etc: I'll leave the rest up to your imagination
    }
}

VB Man
Year of the Linux MCE.

In reply to Cupiditas

#Nov 29th, 2008 @ 4:55 AM

Cupiditas, there are no nodes in FirstChild ChildNodes though.

This rss document is not a normal one...

PerfectPhase
"This is not war, this is pest control!" - Dalek to Cyberman

In reply to VB Man

#Nov 29th, 2008 @ 6:43 AM

Because the first child is '<?xml version="1.0" encoding="ISO-8859-1"?>'

Try this

<BR>XDocument doc = XDocument.Load("http://sanantonio.craigslist.org/sys/index.rss");<BR>XNamespace rdf = "http://purl.org/rss/1.0/";<BR>foreach (var node in doc.Root.Elements(rdf + "channel"))<BR>{<BR>    Console.WriteLine(node.Name);<BR>}