private void CallApplied(ISaleDiscount sd)
{
_sales.Add(sd);
string sdStr = getID() + ". " + sd.ID + ": " + sd.Title + ", Discount = " + sd.Discount + " * " + sd.Quantity;
listCashier.Items.Add(new KeyValuePair <int, string>(sd.ID, sdStr));
listActions.Items.Add(getID() + ". " + sd.ID + " Added.");
}
private void saleApplied(ISaleDiscount s)
{
Items.Add(new CashierItem(s.Title, s.ID.ToString(), s.Quantity, s.Discount, CashierItemType.Discount));
}
