private void ChangeItemIsInCart(GroceryItem item)
{
ItemIsInCartChangedEvent e = new ItemIsInCartChangedEvent();
e.Id = item.Id;
e.IsInCart = !item.IsInCart;
_eventAggregator.Publish(e);
}
public void Handle(ItemIsInCartChangedEvent e)
{
Requires.NotNull(e, "e");
GroceryItem item = _groceryItems.Find(e.Id);
if (item != null)
{
item.IsInCart = e.IsInCart;
}
}
