private void ShowReleases()
 {
     if (releasesList == null || releasesList.Count < 1 || ifRefresh)
     {
         ShowProgressBar();
         Task.Factory.StartNew(() =>
         {
             if (releaseDefinition != null && releaseDefinition.Artifacts != null)
             {
                 releaseDefinition = VSTSService.GetAReleaseDefinition(releaseDefinition.Id);
             }
             releasesList = VSTSService.GetReleases(releaseDefinition);
         }).ContinueWith(async(Task t) =>
         {
             await this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
             {
                 releasesLV.ItemsSource = releasesList;
                 HideProgressBar();
             });
         });
     }
     else
     {
         releasesLV.ItemsSource = releasesList;
         HideProgressBar();
     }
 }