protected void btnOrder_Click(object sender, EventArgs e) { int countSeaweed = int.Parse(ddlCrispySeaweed.SelectedValue); int countRibs = int.Parse(ddlSpareRib.SelectedValue); int countWonton = int.Parse(ddlWonton.SelectedValue); int countPrawnToast = int.Parse(ddlPrawnToast.SelectedValue); var order = new ChineseFoodOrder(countWonton, countRibs, countSeaweed, countPrawnToast); divStarters.Visible = false; divSuccess.Visible = true; }