get utf-8 geocode google map API Street address in asp

Question

I am beginner in asp.net (c#) But i need to get the utf-8 address from latitude & longitude position So i need to retrieve the address in fa language and i We've added language= fa to String map address. but it retrieved the strange character this is my code:

public static void RetrieveFormatedAddress(string lat1, string lng1)
{
    static string baseUri = "http://maps.googleapis.com/maps/api/geocode/xml?latlng={0},{1}&language=fa&sensor=true";
    string requestUri = string.Format(baseUri, lat1, lng1);

    using (WebClient wc = new WebClient())
    {
        wc.DownloadStringCompleted += new DownloadStringCompletedEventHandler(wc_DownloadStringCompleted);
        wc.DownloadStringAsync(new Uri(requestUri));
    }
}

static void wc_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
    var xmlElm = XElement.Parse(e.Result);
    var status = (from elm in xmlElm.Descendants()
                  where elm.Name == "status"
                  select elm).FirstOrDefault();
    if (status.Value.ToLower() == "ok")
    {
        var res = (from elm in xmlElm.Descendants()
                   where elm.Name == "formatted_address"
                   select elm).FirstOrDefault();
        Console.WriteLine(res.Value);
        Console.WriteLine(res);
        GetSMS getsms1 = new GetSMS();
        getsms1.retrunAdress(res.Value);
    }
    else
    {
        Console.WriteLine("error");
    }
}

And google returned me :

    طھظ‡ط±ط§ظ†طŒ طھظ‡ط±ط§ظ†طŒ ط®غŒط§ط¨ط§ظ† ط§ظ…غŒط±غŒ ط·ط§ط¦ظ…ظ‡طŒ ط§غŒط±ط§ظ†

How can i get the 'Farsi' language address from google? Thank you

Answer 1

After 2 days of searching on net and test a lot different codes, Finally i found the solution. My codes are right but only need the set UTF-8 Unicode on web-client object. So my code will change to this:

  using (WebClient wc = new WebClient())
    {
       wc.Encoding = Encoding.UTF8;
       wc.DownloadStringCompleted += new DownloadStringCompletedEventHandler(wc_DownloadStringCompleted);
       wc.DownloadStringAsync(new Uri(requestUri));
    }

this will work in UTF-8 as well.