I write this code to play sample song using nokia mixradio api bt it does not work pls help me.

MediaElement mysound = new MediaElement();
MusicClient musicClient = new MusicClient("554677093f07509567a1e4bbe385d9f2");
var result = await musicClient.SearchAsync(sname + " " + artistname, Category.Track);
myimage2 = new BitmapImage(result[0].Thumb320Uri);
var trackuri = musicClient.GetTrackSampleUri(result[0].Id);
mysound.Source = new Uri(trackuri.AbsoluteUri);


private void playonclick(object sender, EventArgs e)
{
mysound.Play();
}