asp.net 三层机构repeater 怎么分页动态的

前台代码
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
<div class="Content3">
<hr style="border :1px solid grey"/>
<h3>产品介绍</h3>
<div>
产品搜索:<asp:TextBox ID="txtname" placeholder="请输入搜索信息" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="搜索" OnClick="Button1_Click" />
</div>
<p style="text-align:center">
<a href="product.aspx?gname=铝合金水平尺">铝合金水平尺</a>|
<a href='product.aspx?gname=鱼雷式水平尺' >鱼雷式水平尺</a>|
<a href='product.aspx?gname=测量工具'>测量工具</a>|
<a href='product.aspx?gname=其他' >其他</a>
</p>
<asp:Repeater ID="rpproduct" runat="server">
<ItemTemplate>
<dl>
<dt><a href='Productdetail.aspx?shopname=<%#Eval("ShopName") %>'>
<img src="Images/<%#Eval("shoppicture") %>" /></a></dt>
<dd class="dq_introduce"><%#Eval("ShopName") %>
</dd>
<dd class="dq_price">¥<%#Eval("ShopPrice") %></dd>
</dl>
</ItemTemplate>
</asp:Repeater>


</div>
<div id="footpages">
<a href="product.aspx?pages=1"onclick="">上一页</a>
<a href="product.aspx?pages=2"onclick="">下一页</a>
</div>
</asp:Content>
后台代码
void loadpage()
{
string typename = Request.QueryString["gname"];
string page5 = Request.QueryString["pages"];
int pages;
int rows =8;
if (page5 == null)
{
pages =1;
if (typename == null)
typename = "铝合金水平尺";
//Total t = shopBLL.selectShopTotalBLL(typename);
//int totala = t.Totals;
this.rpproduct.DataSource = shopBLL.selectShopPageBLL(rows, pages, typename);
this.rpproduct.DataBind();
}
else
{
pages = int.Parse(page5);
if (typename == null)
typename = "铝合金水平尺";
//shopBLL.selectShopTotalBLL(typename);
this.rpproduct.DataSource = shopBLL.selectShopPageBLL(rows, pages, typename);
this.rpproduct.DataBind();
}我现在是写死了怎么写动态的