protected void Page_Load(object sender, EventArgs e) { goodsId = Request.QueryString["goodsId"] == null ? 0 : Int32.Parse(Request.QueryString["goodsId"]); GoodsIdInput.Text = "<input type='hidden' id='formGooodsId' name='formGooodsId' value='" + goodsId.ToString() + "' />"; GoodsBll gb = new GoodsBll(); List <Sort> sortList = gb.GetSort(); string html = ""; foreach (Sort sort in sortList) { html += "<option value='" + sort.SortId.ToString() + "'>" + sort.SortName + "</option>"; } SortListSelect.Text = html; if (goodsId != 0) { Goods currentGoods = gb.GetSingleGoods(goodsId); goodsName = currentGoods.GoodsName; sortId = currentGoods.SortId; goodsPrice = currentGoods.Price.ToString("f2"); goodsCost = currentGoods.Cost.ToString("f2"); goodsOnsales = currentGoods.Onsale; } }