/// <summary>
 /// Invoked when this page is about to be displayed in a Frame.
 /// </summary>
 /// <param name="e">Event data that describes how this page was reached.  The Parameter
 /// property is typically used to configure the page.</param>
 protected override void OnNavigatedTo(NavigationEventArgs e)
 {
     HttpBaseProtocolFilter baseProtocolFilter = new HttpBaseProtocolFilter();
     HttpRetryFilter retryFilter = new HttpRetryFilter(baseProtocolFilter);
     httpClient = new HttpClient(retryFilter);
     cts = new CancellationTokenSource();
     UpdateAddressField();
 }
        /// <summary>
        /// Invoked when this page is about to be displayed in a Frame.
        /// </summary>
        /// <param name="e">Event data that describes how this page was reached.  The Parameter
        /// property is typically used to configure the page.</param>
        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            HttpBaseProtocolFilter baseProtocolFilter = new HttpBaseProtocolFilter();
            HttpRetryFilter        retryFilter        = new HttpRetryFilter(baseProtocolFilter);

            httpClient = new HttpClient(retryFilter);
            cts        = new CancellationTokenSource();
            UpdateAddressField();
        }