using System;
using System.Xml;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.ServiceModel.Syndication;
using System.IO;
using System.Collections.Generic;
using System.Linq;
namespace ConsumingRSS
{
public partial class Page : UserControl
{
public Page()
{
InitializeComponent();
}
protected void LoadRSS(string uri)
{
WebClient wc = new WebClient();
wc.OpenReadCompleted +=new OpenReadCompletedEventHandler(wc_OpenReadCompleted);
Uri feedUri = new Uri(uri, UriKind.Absolute);
wc.OpenReadAsync(feedUri);
}
private void wc_OpenReadCompleted(object sender, OpenReadCompletedEventArgs e)
{
if (e.Error != null)
{
txtFeedLoc.Text = "Error in Reading Feed. Try Again later!!";
return;
}
using (Stream s = e.Result)
{
SyndicationFeed feed;
List<SyndicationItem> feedItems = new List<SyndicationItem>();
using (XmlReader reader = XmlReader.Create(s))
{
feed = SyndicationFeed.Load(reader);
foreach (SyndicationItem feedItem in feed.Items)
{
feedItems.Add(feedItem);
}
var posts = from item in feedItems
select new RSSFeed()
{
Title = item.Title.Text,
NavURL = item.Links[0].Uri.AbsoluteUri,
Description = item.Summary.Text
};
dGrid.ItemsSource = posts;
dGrid.Visibility = Visibility.Visible;
}
}
}
private void btnFetch_Click(object sender, RoutedEventArgs e)
{
if(txtFeedLoc.Text != String.Empty)
LoadRSS(txtFeedLoc.Text.Trim());
}
}
public class RSSFeed
{
public string Title { get; set; }
public string NavURL { get; set; }
public string Description { get; set; }
}
} |
