public void Open(CardSpaceCardViewModel cardSpaceCard)
{
var existing = Cards.FirstOrDefault(p => p.Id == cardSpaceCard.Id);
if (existing != null)
{
SelectedCard = existing;
return;
}
OpenImpl(cardSpaceCard);
}
void OpenImpl(CardSpaceCardViewModel cardSpaceCard)
{
Cards.Add(cardSpaceCard);
SelectedCard = cardSpaceCard;
}