private void spinner_ItemSelected(object sender, AdapterView.ItemSelectedEventArgs e)
        {
            var id = e.Id;

            HttpServiceHelper.GetAppSettings(string.Format("{0}?stationId={1}", m_RtcServiceUrl, id), null, OnRtcServiceSuccess);
        }
 private void GetMetroInformation()
 {
     HttpServiceHelper.GetAppSettings(m_MetroServiceUrl, String.Empty, OnServiceSuccess);
 }