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Fetch RSS Feed Content From LINQ To XML

In this article I will demonstrate how to build RSS Feed Reader using LINQ to XML.
 
Step 1

You  need to grab the feed Link. In my case i will be using C# Corner Feed Link. The following image helps to find the desired link from C# Corner Main Page.

 
 
 You can get Link from above yellow highlighted regions. I am pasting the links for reference.
Step 2

Now after opening Visual Studio you can creating a new website by going to File, New, then Website or by pressing Shift+Alt+N command in Visual Studio.

 
Step 3: Create ASP.NET Empty Web Site and then add new web form to the page.

 
 
Step 4: Add Controls to the page. In our case we required a TextBox and Button.

Here is the code for building the Rss Reader. 
  1. <!DOCTYPE html>  
  2.   
  3. <html xmlns="http://www.w3.org/1999/xhtml">  
  4. <head runat="server">  
  5.     <title></title>  
  6. </head>  
  7. <body>  
  8.     <form id="form1" runat="server">  
  9.         <div>  
  10.             <strong>RSS Feed:</strong><br />  
  11.             <asp:TextBox ID="txtrss" runat="server" TextMode="Url" Width="500px" placeholder="Enter RSS URL"></asp:TextBox>  
  12.             <br />  
  13.             <br />  
  14.             <asp:Button ID="btngetrss" runat="server" Text="Get RSS Feed" OnClick="btngetrss_Click" />  
  15.         </div>  
  16.   
  17.     </form>  
  18. </body>  
  19. </html>  
 
Step 5: Add new class and public properties inside it.
  1. using System;  
  2. using System.Collections.Generic;  
  3. using System.Linq;  
  4. using System.Text;  
  5.   
  6. public class RssNews  
  7. {  
  8.     public string tit   
  9.   {  
  10.         get;  
  11.         set;  
  12.     }  
  13.     public string desc  
  14.     {  
  15.         get;  
  16.         set;  
  17.     }  
  18.     public string auth  
  19.     {  
  20.         get;  
  21.         set;  
  22.     }  
  23.     public string contentlink  
  24.     {  
  25.         get;  
  26.         set;  
  27.     }  
  28.     public string date   
  29.     {  
  30.         get;  
  31.         set;  
  32.     }  
  33.   
  34.   
  35. }  
Step 6: Add required Namespaces
  1. using System.Xml;  
  2. using System.Xml.Linq;   
Step 7: Now we can write code behind logic in button.
  1. protected void btngetrss_Click(object sender, EventArgs e)  
  2.    {  
  3.   
  4.        var posts = GetFeeds(txtrss.Text);  
  5.        StringBuilder sb = new StringBuilder();  
  6.        sb.Append("<p style='font-weight:larger'><b>C# Corner Latest Content Fetch From RSS by Aqib Shehzad</b></p>");  
  7.        foreach (var item in posts)  
  8.        {  
  9.             
  10.            sb.Append("<b>Title: </b>" + item.tit);  
  11.            sb.Append("<br />");  
  12.            sb.Append("<b>Description: </b>" + item.desc);  
  13.            sb.Append("<br />");  
  14.            sb.Append("<b>Article Link: </b><a target='_blank' href='" + item.contentlink + "'>" +item.contentlink+"</a>");  
  15.            sb.Append("<br />");  
  16.            sb.Append("<b>Published Date: </b>" + item.date);  
  17.            sb.Append("<br />");  
  18.            sb.Append("<b>Author: </b>" + item.auth);  
  19.            sb.Append("<br />");  
  20.            sb.Append("------------------------------------------------------------------------------------------------------------");  
  21.            sb.Append("<br />");  
  22.   
  23.        }  
  24.        HttpContext.Current.Response.Write(sb);  
  25.    }  
The Feed Reader method from URL.
  1. public static IEnumerable<RssNews> GetFeeds(string url)  
  2.     {  
  3.         XDocument rssfeedxml;  
  4.         XNamespace namespaceName = "http://www.w3.org/2005/Atom";  
  5.         rssfeedxml = XDocument.Load(url);  
  6.   
  7.   
  8.         StringBuilder rssContent = new StringBuilder();  
  9.   
  10.         var list = (from descendant in rssfeedxml.Descendants("item")  
  11.   
  12.                     //Response.Write(list);  
  13.                     select new RssNews  
  14.                     {  
  15.                         tit = descendant.Element("title").Value,  
  16.                         desc = descendant.Element("description").Value,  
  17.                         contentlink = descendant.Element("link").Value,  
  18.                         date = descendant.Element("pubDate").Value,  
  19.                         auth = descendant.Element("author").Value  
  20.   
  21.                     });  
  22.         return list.ToList();  
  23.     }  
Now after Initializes a new instance of the XDocument class. we can declare the namespace of Rss Feed. 
  1. XNamespace namespaceName = "http://www.w3.org/2005/Atom";    
Now we can load the URI contents to create the new Xdocument.
  1. XDocument.Load(url);  
after fetching data we can get the descendant element for which we want data. 
  1. var list = (from descendant in rssfeedxml.Descendants("item")      
and after manipulation we return the data as list and do processing per need.

Step 8:

Final Output
 
 
Hope you find this useful. 


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