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Re: How To Create An RSS Reader In VB.NET

gurren — Tue, 06 Jan 2009 19:38:18 GMT

This works great, but I run into a problem when the rssItems.Count is less than what I manually set as the upperlimit. It will truncate the last entry and cause page formatting issues.

Has anyone else experienced an issue similar to this?

Re: How To Create An RSS Reader In VB.NET

Mikesdotnetting — Fri, 28 Mar 2008 21:56:44 GMT

grbourque:
Found one thing that needs to be changed though for VB.net

Nice spot. Codechanger.com is normally very good. But there are one or two anomolies I noticed.

Re: How To Create An RSS Reader In VB.NET

grbourque — Fri, 28 Mar 2008 18:55:08 GMT

I know this is an old thread and I just used Mikesdotnetting solution on my site.

Found one thing that needs to be changed though for VB.net

If rssDetail <> Nothing Then

This needs to be changed to

If NOT rssDetail IS Nothing Then

Works like a champ. Thanks.

Re: How To Create An RSS Reader In VB.NET

KJAK — Thu, 20 Sep 2007 12:58:12 GMT

Thanks for all of the responses. Each one helps for different situations so I have marked all as answers. I even found really good article on msdn that explains how to make a Windows Sidebar gadget: http://msdn.microsoft.com/msdnmag/issues/07/08/SideBar/

Thanks again!
KJAK

Re: How To Create An RSS Reader In VB.NET

jguadagno — Wed, 19 Sep 2007 19:34:37 GMT

I would look at the ASP.NET RSS Toolkit . It has a RSSDataSource which you can use to bind to RSS feeds.

Re: How To Create An RSS Reader In VB.NET

haidar_bilal — Wed, 19 Sep 2007 19:20:20 GMT

You could have a look at this article: http://aspnet.4guysfromrolla.com/articles/102903-1.aspx Also, there is an ASP.NET RSS Toolkit by Dmitry Robinson, check it here: http://www.codeplex.com/ASPNETRSSToolkit Hope this helps, Regards

Re: How To Create An RSS Reader In VB.NET

Mikesdotnetting — Wed, 19 Sep 2007 19:16:48 GMT

Public Shared Function ProcessRSS(ByVal rssURL As String, ByVal feed As String) As String
   Dim request As WebRequest = WebRequest.Create(rssURL)
   Dim response As WebResponse = request.GetResponse()
   Dim sb As New StringBuilder("")
   Dim rssStream As Stream = response.GetResponseStream()
   Dim rssDoc As New XmlDocument()
   rssDoc.Load(rssStream)
   Dim rssItems As XmlNodeList = rssDoc.SelectNodes("rss/channel/item")

   Dim title As String = ""
   Dim link As String = ""
   Dim upperlimit As Integer = rssItems.Count
   If upperlimit > 5 Then
       upperlimit = 5
   End If
   If upperlimit > 0 Then
       sb.Append("<p>" + feed + "</p><ul>")
       Dim i As Integer = 0
       While i < upperlimit
           Dim rssDetail As XmlNode
           rssDetail = rssItems.Item(i).SelectSingleNode("title")
           If rssDetail <> Nothing Then
               title = rssDetail.InnerText
           Else
               title = ""
           End If

           rssDetail = rssItems.Item(i).SelectSingleNode("link")
           If rssDetail <> Nothing Then
               link = rssDetail.InnerText
           Else
               link = ""
           End If
           sb.Append("<li><a href='" + link + "' target='_blank'>" + title + "</a></li>")
            i+=1
       End While
       sb.Append("</ul>")
   End If
   Return sb.ToString()
End Function

Then to call the method:

Feed1.Text = ProcessRSS("http://weblogs.asp.net/scottgu/rss.aspx", "ScottGu")

Where Feed1 is an asp:Literal control.

All I did was take the C# code from this article, and shove it into www.codechanger.com

How To Create An RSS Reader In VB.NET

KJAK — Wed, 19 Sep 2007 19:05:14 GMT

Well... The topic is pretty much the question. I would like to know how to create a custom RSS Reader for my web pages. I have been looking online, but haven't found anything that uses VB.NET.

As a side note to the web reader: I would also like to know how to create a gadget reader for Windows Vista Sidebar - if anyone can help me with that as well.

Thanks,
KJAK