private void IncrementCard(SoldCardItem item)
{
item.Quantity++;
RaisePropertyChanged(() => Total);
Save();
}
private void DeleteCard(SoldCardItem item)
{
Items.Remove(item);
RaisePropertyChanged(() => Total);
Save();
}
private void DecrementCard(SoldCardItem item)
{
if (item.Quantity == 1)
{
DeleteCard(item);
}
else
{
item.Quantity--;
RaisePropertyChanged(() => Total);
Save();
}
}