protected void Button2_Click(object sender, EventArgs e)
        {
            String s = goodsId.Value.ToString();
            String p = price.Value.ToString();
            bool   a = Goods_C.AlterByID(s, p);

            if (a == true)
            {
                Response.Write("<script language=javascript>window.alert('修改成功');</script>");
            }
            else
            {
                Response.Write("<script language=javascript>window.alert('修改失败');</script>");
            }
            goods = Goods_C.SelectFuzzy(s);
        }
        protected void Button1_Click(object sender, EventArgs e)
        {
            try
            {
                bool result = Goods_C.AddGoods(gid.Value, gname.Value, Convert.ToInt32(gcategory.Value), gunit.Value, Convert.ToInt32(gexpirationdate.Value), Convert.ToDouble(price.Value));

                if (result)
                {
                    Response.Write("<script language=javascript>window.alert('添加成功');</script>");
                }
                else
                {
                    Response.Write("<script language=javascript>window.alert('添加失败!');</script>");
                }
            }
            catch (Exception en)
            {
                Response.Write("<script language=javascript>window.alert('商品信息列表已有该商品,添加失败!');</script>");
            }
        }
 protected void Button4_Click(object sender, EventArgs e)
 {
     try
     {
         String s = goodsId.Value.ToString();
         bool   a = Goods_C.DeleteByID(s);
         if (a == true)
         {
             Response.Write("<script language=javascript>window.alert('删除成功');</script>");
         }
         else
         {
             Response.Write("<script language=javascript>window.alert('删除失败');</script>");
         }
         goods = Goods_C.SelectFuzzy(s);
     }
     catch (Exception em)
     {
         Response.Write("<script language=javascript>window.alert('不含有该商品,删除失败');</script>");
     }
 }
        protected void Button1_Click(object sender, EventArgs e)
        {
            String s = goodsId.Value.ToString();

            goods = Goods_C.SelectFuzzy(s);
        }
 protected void Page_Load(object sender, EventArgs e)
 {
     goods = Goods_C.SelectFuzzy("");
 }