private void locationProvider_OnLocationCoordinateChanged(object sender, LocationChangedEventArgs e)
{
System.Diagnostics.Debug.WriteLine(e.LocationCoordinate.ToString());
this.latitude = e.LocationCoordinate.Latitude;
this.longitude = e.LocationCoordinate.Longitude;
ImageWallServiceClient client = new ImageWallServiceClient();
client.GetNearbyTagsCompleted += ClientGetNearbyTagsCompleted;
client.GetNearbyTagsAsync(e.LocationCoordinate.Latitude, e.LocationCoordinate.Longitude, 0.05);
}
