public static void ClearTicketDiscounts(YearId ticketPrimaryKey)
{
IEnumerable <TicketDiscount> discounts = TicketDiscount.GetAll(ticketPrimaryKey);
foreach (TicketDiscount discount in discounts)
{
TicketDiscount.Delete(discount.PrimaryKey);
}
}
private void InitializeAppliedDiscounts()
{
List <int> addedIds = new List <int>();
listBoxApplied.Items.Clear();
foreach (Discount coupon in TicketDiscount.GetAll(SelectedTicket.PrimaryKey)
.Select(ticketDiscount => Discount.Get(ticketDiscount.DiscountId))
.Where(coupon => !addedIds.Contains(coupon.Id)))
{
addedIds.Add(coupon.Id);
AddApplied(coupon);
}
}
private void RemoveDiscount()
{
FormattedListBoxItem selectedItem =
(FormattedListBoxItem)listBoxApplied.SelectedItem;
listBoxApplied.SelectedItem = null;
listBoxApplied.Items.Remove(selectedItem);
Discount discount =
(Discount)selectedItem.ReferenceObject;
IEnumerable <TicketDiscount> allDiscounts = TicketDiscount.GetAll(SelectedTicket.PrimaryKey);
foreach (TicketDiscount ticketDiscount in allDiscounts)
{
if (ticketDiscount.DiscountId == discount.Id)
{
TicketDiscount.Delete(ticketDiscount.PrimaryKey);
}
}
InitializeAvailableDiscounts();
}