Admin.ShoppingView.buy_Click C# (CSharp) Метод

        private void buy_Click(object sender, EventArgs e)
        {
            if (goodsId != -1)
            {
                if (buyGoods())
                {
                    MessageBox.Show("购买成功", "提醒", MessageBoxButtons.OK);
                    goodsId = -1;
                }
                else
                {
                    MessageBox.Show("购买失败", "提醒", MessageBoxButtons.OK);
                    goodsId = -1;
                }
            }
            else
            {
                MessageBox.Show("请先选择商品", "提醒", MessageBoxButtons.OK);
            }
        }