Question

Is there anyway to read the specific line?

https://i.stack.imgur.com/hDPIg.jpg

                XDocument dataFeed = XDocument.Parse(e.Result);

                AchivementsListBox.ItemsSource = from query in dataFeed.Descendants("MaxPayne3")
                                                 select new NewGamesClass
                                                 {
                                                     GameGuide = (string)query.Element("Guide")

                                                 };

Answer 1

I would use a single WebClient instance to download the files, and simply reduce it to a single event handler. More than that, you have a similar document structure from what I can tell. That means that you could also re-use your reading code instead of writing it twice.

Something like this:

void Download(GameType type, Action onCompletion)
{
    WebClient client = new WebClient();
    client.DownloadProgressChanged += (s, args) =>
    {
        // Handle change in progress.
    };

    client.DownloadStringCompleted += (s, args) =>
    {
        XDocument feed = XDocument.Parse(args.Result);

        var itemSource = from query in feed.Root
                                      select new NewGamesClass
                                      {
                                          NewGameTitle = (string)query.Element("Title"),
                                          NewGameDescription = (string)query.Element("Descript
                                          NewGameImage = (string)query.Element("Image")
                                      };
        switch (type)
        {
            case GameType.ComingSoon:
                {
                    ComingSoonList.ItemSource = itemSource;
                }
            case GameType.NewGames:
                {
                    NewGameList.ItemSource = itemSource;
                }

        }

        if (onCompletion != null)
            onCompletion();
    };

    switch (type)
    {
        case GameType.NewGames:
            {
                client.DownloadStringAsync(new Uri("http://microsoft.com", UriKind.Absolute));
                break;
            }
        case GameType.ComingSoon:
            {
                client.DownloadStringAsync(new Uri("http://www.bing.com", UriKind.Absolute));
                break;
            }
    }
}

Although the code might look a bit more complex, it lets you recursively download data when a specific data set is downloaded. Obviously, you would have to declare the GameType enum and I simply used a bunch of test values here to demonstrate the idea.