C# (CSharp) StoreHelper.ApplyDiscount примеры использования

Пример #1

        void btnApplyDiscount_Click(object sender, EventArgs e)
        {
            string errorMessage = string.Empty;

            if (StoreHelper.ApplyDiscount(store, cart, txtDiscountCode.Text, out errorMessage))
            {
                WebUtils.SetupRedirect(this, Request.RawUrl);
                return;
            }
            lblDiscountError.Text = errorMessage;
        }