System.NotSupportedException with WebClient on Windows Phone 7

Question

I am having a bit of an issue in using WebClient on Windows Phone 7. I am currently trying to use it by downloading a file into a string so that I can parse the string using JSON.NET. Unfortunately, I am can't even seem to get the file into a string just yet. Here is my code:

private void GetFileAsString()
{
    var client = new WebClient();
    client.DownloadStringCompleted += new DownloadStringCompletedEventHandler(sClient_DownloadStringCompleted);  
    client.DownloadStringAsync(new Uri(searchData.searchurl, UriKind.Relative));
}
private void sClient_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
    if (e.Error == null)
    {
        textBlock1.Text = e.Result;
    }
    else
    {
        textBlock1.Text = e.Error.ToString();
    }
}

And here is a screenshot of the error I am receiving: http://k.min.us/jzvIAYJ18uQbV.png

I've looked online quite a bit and can't seem to find a solution to this problem, including in previous posts on this site. Any help here is greatly appreciated!

Answer 1

You need to setup BaseAddress property on your WebClient instance correctly when you use UriKind.Relative , alternatively just use absolute Uri - otherwise it tries to use your xap's origin Uri...