private void ShowProducts(string pids)
        {
            ProductModelBll     pbll  = new ProductModelBll();
            List <ProductModel> plist = pbll.GetModelList("productId in (" + pids + ")");

            string[] vals = (from p in plist select p.ProductName).ToArray();

            AddTH("<span>产品基本情况</span>", plist.Count + 1);
            AddTR("商品名称", (from p in plist orderby p.ProductId select p.ProductName).ToArray(), true);
            AddTR("产品图片", (from p in plist orderby p.ProductId select "<img class='productPi' src='" + p.SmallImage + "'/>").ToArray(), false);
            AddTR("产品编号", (from p in plist orderby p.ProductId select p.ProductId.ToString()).ToArray(), false);
            AddTR("市场价", (from p in plist orderby p.ProductId select p.TradePrice.ToString("F2")).ToArray(), false);
            AddTR("鼎鼎价", (from p in plist orderby p.ProductId select p.MerchantPrice.ToString("F2")).ToArray(), false);
            AddTR("库存状态", (from p in plist orderby p.ProductId select p.Stock > 0 ? "现货" : "补货中").ToArray(), false);
            AddTH("<span>详细参数</span>", plist.Count + 1);

            int cateNum = (from p in plist select p.CateId).Distinct().ToArray().Length;

            if (cateNum > 1)
            {
                AddTR("商品不属于同一个分类,无法比较", plist.Count + 1);
            }
            else
            {
                int cateId = plist[0].CateId;

                CategoryParaModelBll     pabll  = new CategoryParaModelBll();
                List <CategoryParaModel> cplist = pabll.GetModelList("cateId=" + cateId);

                ProductParaModelBll     ppabll  = new ProductParaModelBll();
                List <ProductParaModel> ppalist = ppabll.GetModelList("productId in (" + pids + ")");

                foreach (CategoryParaModel cpmodel in cplist)
                {
                    string   title = cpmodel.ParaName;
                    string[] pvals = (from p in ppalist where p.ParaId == cpmodel.ParaId orderby p.ProductId select p.ParaValue).ToArray();
                    AddTR(title, pvals, false);
                }
            }
        }