public void LoadData(string feedName)
{
KeyValuePair<string, string> feedValue;
bool feedKey = Settings.RssFeeds.TryGetValue(feedName.ToLower(), out feedValue);
if (!feedKey)
{
NewsFeed = new NewsFeedModel();
}
NewsPageTitle = !string.IsNullOrWhiteSpace(feedValue.Key) ? feedValue.Key : "Recent Items";
NewsFeed = Service.GetNews(feedName, "8");
NewsItems = NewsFeed.Items;
}
private void BuildNewsFeedModel(NewsFeedModel data)
{
_news.Title = data.Title;
_news.Description = data.Description;
_news.Copyright = data.Copyright;
_news.Link = data.Link;
_news.Language = data.Language;
_news.ImageUrl = data.ImageUrl;
foreach (NewsItemModel item in data.Items)
{
var newsItem = new NewsItemModel
{
Title = item.Title,
ArticleLink = item.ArticleLink,
Date = item.Date,
Description = item.Description,
ImageUrl = Coalesce(item.ImageUrl, Settings.DefaulImage).ToString()
};
_news.Items.Add(newsItem);
}
}
public NewsFeedModel GetNews(string newsFeed, string storyCount)
{
_news = new NewsFeedModel();
var loadedEventArgs = new LoadEventArgs();
string queryString = string.Format("{0}?feed={1}&pageSize={2}", Settings.NewsUrl, newsFeed ?? "",
storyCount ?? "");
var webClient = new SharpGIS.GZipWebClient();
Observable.FromEvent<DownloadStringCompletedEventArgs>(webClient, "DownloadStringCompleted")
.ObserveOn(Scheduler.ThreadPool)
.Select(x => ProcessNews(x.EventArgs.Result))
.ObserveOn(Scheduler.Dispatcher)
.Subscribe(s =>
{
BuildNewsFeedModel(s);
loadedEventArgs.IsLoaded = true;
loadedEventArgs.Message = "";
OnNewsLoaded(loadedEventArgs);
}, e =>
{
loadedEventArgs.IsLoaded = false;
loadedEventArgs.Message = e.Message.ToString(CultureInfo.InvariantCulture);
OnNewsLoaded(loadedEventArgs);
});
webClient.DownloadStringAsync(new Uri(queryString));
return _news;
}