Repeater的合计怎么实现

Repeater的合计如何实现？
<asp:Repeater id="Repeater1" runat="server">
        <HeaderTemplate>
        <table border="1" width="100%">
        <tr bgcolor="#b0c4de">
        <th>序号</th>
        <th>名称</th>
        <th>代码</th>
        </tr>
        </HeaderTemplate>
         <ItemTemplate>
        <tr bgcolor="#f0f0f0">
        <td>
        <%# this.Repeater1.Items.Count + 1%>
        </td>
        <td><%#Eval("man")%> </td>
        <td><%#Eval("monery")%> </td>
        </tr>
        </ItemTemplate>
        <FooterTemplate>        
        <td>合计</td>
        <td>总人数=</td>
        <td>总金额=</td>
        </table>
        </FooterTemplate>
        </asp:Repeater>

后台 cs:
 public void bindData()
    {
        SqlConnection con = new               SqlConnection("server=.;database=dsc080211_db;uid=sa;password=123");
        SqlCommand cmd = new SqlCommand("select * from table ",con);
        con.Open();
        SqlDataReader sdr = cmd.ExecuteReader();
        Repeater1.DataSource = sdr;
        Repeater1.DataBind();
        sdr.Close();
        con.Close();



    }
请问这个合计应该怎么实现？


http://www.cnblogs.com/insus/archive/2013/03/21/2973326.html

or:
http://www.cnblogs.com/insus/archive/2013/03/22/2974970.html