private void SecondaryTasksListView_Loaded(object sender, RoutedEventArgs e)
{
var listView = (ListView)sender;
_ActiveTasks = new ObservableCollection <IBackgroundTaskRegistration>(BackgroundTasks.GetAllTasks());
listView.ItemsSource = _ActiveTasks;
if (listView.Items.Count > 0)
{
EmptyViewSecondaryTasks.Visibility = Visibility.Collapsed;
}
}