public async void SelectionChanged(SelectionChangedEventArgs e)
{
if (e.AddedItems.Count == 0)
{
return;
}
var item = (RecentItemViewModel)e.AddedItems[0];
item.LastUsedDate = DateTime.Now;
await recentManager.Save(RecentItems.ToList());
NavigationService.UriFor <HostPageViewModel>().WithParam(x => x.PresetFileName, item.FilePath).Navigate();
SelectedIndex = -1;
}