private void OnPhotoAndVideoProviderModelSourceChanged(object sender, ModelSourceChangedEventArgs e)
 {
     this.photosNeedLoading = true;
     this.reloadSourcesTimer.PerformAction();
 }
 private void OnPhotoAndVideoProviderModelSourceChanged(object sender, ModelSourceChangedEventArgs e)
 {
     this.photosNeedLoading = true;
     this.reloadSourcesTimer.PerformAction();
 }
 private void OnMusicAndMovieProviderModelSourceChanged(object sender, ModelSourceChangedEventArgs e)
 {
     this.musicNeedsLoading = true;
     this.reloadSourcesTimer.PerformAction();
 }
 private void OnMusicAndMovieProviderModelSourceChanged(object sender, ModelSourceChangedEventArgs e)
 {
     this.musicNeedsLoading = true;
     this.reloadSourcesTimer.PerformAction();
 }