i need so input with xml and webclient in wp7

Question

Is there anyway to read the specific line?

http://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.

Answer 2

// It Will Download The XML Once To Use further to Avoid Again And Again Calls For Each Time


public void GetXML(string path)
            {
                WebClient wcXML = new WebClient();
                wcXML.OpenReadAsync(new Uri(path));
                wcXML.OpenReadCompleted += new OpenReadCompletedEventHandler(webClient);
            }

void webClient(object sender, OpenReadCompletedEventArgs e)
        {
            if (e.Error == null)
            {
                try
                {
                    Stream Resultstream = e.Result;
                    XmlReader reader = XmlReader.Create(Resultstream);

                        var isolatedfile = IsolatedStorageFile.GetUserStoreForApplication();
                        using (IsolatedStorageFileStream stream = new IsolatedStorageFileStream("Download.xml", System.IO.FileMode.Create, isolatedfile))
                        {
                            byte[] buffer = new byte[e.Result.Length];
                            while (e.Result.Read(buffer, 0, buffer.Length) > 0)
                            {
                                stream.Write(buffer, 0, buffer.Length);
                            }
                            stream.Flush();
                            System.Threading.Thread.Sleep(0);
                        }
                }

                catch (Exception ex)
                {
                    //Log Exception
                }
            }

            if (e.Error != null)
            {
                //Log Exception
            }
        }

// This Method Will Give You Required Info According To Your Tag Like "Achievement123"

protected List<DownloadInfo> GetDetailFromXML(string TagName)
        {
            //TagName Like "achivement23"
            List<DownloadInfo> listDetails = new List<DownloadInfo>();

            XDocument loadedData;
            try
            {
                using (var storage = IsolatedStorageFile.GetUserStoreForApplication())
                {
                    // Check For Islated Storage And Load From That
                    if (storage.FileExists("Download.xml"))
                    {
                        using (Stream stream = storage.OpenFile("Download.xml", FileMode.Open, FileAccess.Read))
                        {
                            loadedData = XDocument.Load(stream);
                            //TagName Like "achivement23"
                            listDetails.AddRange((from query in loadedData.Element("GOW1").Elements(TagName)
                                                  select new DownloadInfo
                                                  {
                                                      TITLE = (string)query.Element("TITLE"),
                                                      DESCRIPTION = (string)query.Element("DESCRIPTION"),
                                                      ACHIVEMENTIMAGE = (string)query.Element("ACHIVEMENTIMAGE"),
                                                      GUIDE = (string)query.Element("GUIDE"),
                                                      YOUTUBELINK = (string)query.Element("YOUTUBELINK")
                                                  }).ToList());
                        }
                    }
                }
                return listDetails;
            }
            catch (Exception ex)
            {
                return listDetails = null;
                //Log Exception
            }
        }

        public class DownloadInfo
        {
            public string TITLE { get; set; }
            public string DESCRIPTION { get; set; }
            public string GUIDE { get; set; }
            public string ACHIVEMENTIMAGE { get; set; }
            public string YOUTUBELINK { get; set; }
        }

Here is Your Method Calls

GetXML("ANY URL FROM WHERE YOU WANT TO GET XML"); // You Will Download All The XML Once To Avoid Again And Again Server Calls To Get XML. 

GetDetailFromXML("YOUR TAG NAME"); // It Will Take Your Tag Name Which Information You Want To Get Like "Acheicement123" and It Will Return You Data In List<DownloadInfo> and You can easily get data from this List.

I hope it will help you. I didnot Test The Code on Runtime. But I Hope It Will Give You Some Idea.. :)