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How to use the XDocument class in a SilverLight project (C #)

I'm trying to create a Silverlight application (for the first time) that includes parsing XML from a site and displaying information. For this, I use Visual Studio 2008 on Windows XP Service Pack 3. I also have the .NET Framework 3.5 SP1 installed.

My problem is that no XML parser that I saw on the Internet works. At the top of my code, I have two lines that I consider necessary (using "System.xml;" and using "System.linq;"), but XDocument, XMLReader, XMLDocument and any others that I found do not work, returning an error that the type or namespace could not be found. I have a .NET Framework.

In this problem, I did absolutely nothing on the Internet. Does anyone have any idea?

EDIT: I just discovered that when I open a file outside the context of a Silverlight project, it can use XDocument. Only when I open the whole project does my problem arise

Here is a sample code showing the problem:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Xml.Linq; //Error 1 (See below)

namespace LastfmAmazon
{
    public partial class Page : UserControl
    {
        public Page()
        {
            InitializeComponent();
        }

        public void DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
        {
            XDocument doc = XDocument.Parse(e.Result); //Error 2: see below

        } 

        public void Button_Click(object sender, RoutedEventArgs e)
        {

            if (uname.Text != String.Empty)
            {
                App app = (App)Application.Current;
                app.UserName = uname.Text;
                String getTopArtists = "http://ws.audioscrobbler.com/2.0/?method=user.gettopartists&user=" + app.UserName + "&api_key=d2d620af554a60f228faed8d502c4936";
                uname.Text = "Try Another One!";
                WebClient web = new WebClient();
                WebClient client = new WebClient();
                client.DownloadStringCompleted += new DownloadStringCompletedEventHandler(DownloadStringCompleted);
                client.DownloadStringAsync(new Uri(getTopArtists));
            }
        }
    }   
}

Error 1: this line contains the following error: The type or name of the namespace "Linq" does not exist in the namespace "System.Xml" (do you miss the assembly reference?)

Error 2: this line contains the following error: The type or name of the namespace "XDocument" does not exist in the namespace "System.Xml" (do you miss the assembly reference?)

EDIT 2: As soon as I figured out what it meant to “add a link” to the library, Anthony's answer solved the problem.

+5
2

Silverlight DLL System.Xml, XDcoument System.Xml.Linq dll, .

+9

, XML

  • XMLDocument, XMLReader ..: System.Xml.Dll
  • XDocument, XNode ..: System.Xml.Linq.dll
+3

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