private IndividualCardModel FindCardInCollection(Guid guidOfCardToFind)
        {
            IndividualCardModel cardToFind = null;

            foreach (IndividualCardModel card in FlashcardCollection)
            {
                if (card.CardID.Equals(guidOfCardToFind))
                {
                    cardToFind = card;
                    break;
                }
            }

            if (cardToFind == null)
            {
                throw new ArgumentException(string.Format("Could not find card {0} in set", guidOfCardToFind));
            }

            return(cardToFind);
        }
 public void RemoveCardFromSet(IndividualCardModel cardToRemove)
 {
     FlashcardCollection.Remove(cardToRemove);
 }