private void TuneControls()
{
var selected = SelectedCards.Select(c => c.Id).ToArray();
var cardControls = _data.Cards.OrderBy(c => c.Name).Select(c => new CardControl {
Card = c
});
_lb.ItemsSource = cardControls;
if (selected.Any())
{
var selectedCard = _data.Cards.FirstOrDefault(c => selected.Any(s => s == c.Id));
_lb.SelectedItem = cardControls.FirstOrDefault(cc => cc.Card == selectedCard);
}
_btnEdit.IsEnabled = SelectedCard != null;
_btnRemove.IsEnabled = SelectedCards.Any();
}