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>
  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>
  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;
  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. }
  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. {
  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. {
  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 />");
  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);
  8. StringBuilder rssContent = new StringBuilder();
  10. var list = (from descendant in rssfeedxml.Descendants("item")
  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
  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.