Creating an RSS feed

RSS Feed using ASP.NET & Linq http://www.livetolearn.in

RSS is a format for an XML document that describes a list of items, such as blog entries or news headlines.
The document may just be a stream of XML created on the fly rather than a static file.
http://www.livetolearn.in

Add a generic handler named rsshandler.ashx
Add import directive Imports System.Xml.Linq
Replace the process request() subroutine as follows

Public Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest
Dim rssdoc As New XDocument(New XDeclaration( "1.0", Nothing, Nothing))
rssdoc.Add( New XComment( "My RSS Feed uses XML to Linq datasource"))
Dim rssrootelement As New XElement( "rss", New XAttribute( "version", "2.0"))
Dim rsschannel As New XElement( "channel")
Dim rsstitle As New XElement( "title", "RK's News Channel")
rsschannel.Add(rsstitle)
Dim rssdesc As New XElement( "description", "Description of Channel")
rsschannel.Add(rssdesc)
Dim rsslink As New XElement( "link", "http://www.livetolearn.in/")
rsschannel.Add(rsslink)
Dim intCtr As Integer
Dim rssitem As XElement
RSS Document Comment RSS Channel Title (Appears at title bar) RSS Title Link http://www.livetolearn.in

For intCtr = 0 To 10
rssitem = New XElement( "item", _
New XElement( "title", "This is item number " & intCtr.ToString), _
New XElement( "description", "Description for item # " & _
intCtr.ToString), _
New XElement( "link", "http://www.livetolearn.in/item" & _
intCtr.ToString & ".aspx"))
rsschannel.Add(rssitem)
Next
rssrootelement.Add(rsschannel)
rssdoc.Add(rssrootelement)
rssdoc.Save(( New System.IO.StreamWriter _
(context.Response.OutputStream)))
End Sub
This for loop creates 10 sample items with Description. http://www.livetolearn.in

Now, browse the rsshandler.ashx with Internet Explorer 7 and above or Firefox

Displaying XML data http://www.livetolearn.in

Add an XmlDataSource control to a ASP.NET page
Click smart tag
Choose configure data source
Enter the URL of the RSS feed
For example
http://www.livetolearn.in/blog/?feed=rss2
Type the following in Xpath expression text box
Rss/channel/item
Add a data list control and set source to Xmldatasource1,
Edit Item template of data list control
Add a hyper link control inside the item template
Set it’s data binding property as follows Navigate URL – xPath(“link”)
xPath(“title”)
It displays the list of items from rss feed.

By adding more items in Item Template (e.g. Text box), we can display description from RSS feed.
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Creating an RSS feed

by Karthikeyan MKR on Oct 11, 2009

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Creating an RSS feed — Presentation Transcript