asp.net中GridView数据鼠标移入显示提示信息

<link href="../Js/popTips/tip-yellow/tip-yellow.css" rel="stylesheet" /> 
<script src="../Js/jquery-1.7.2.min.js"></script> 
<script src="../Js/popTips/jquery.poshytip.min.js"></script> 

<asp:GridView ID="GridView1" OnRowDataBound="GridView1_RowDataBound" AllowPaging="True" 
     runat="server" AutoGenerateColumns="False" OnPageIndexChanging="GridView1_PageIndexChanging" 
     CellPadding="4" CssClass="grid1" EmptyDataText="无数显示" PageSize="10" 
     Width="99%" HeaderStyle-Wrap="True"> 
     <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" /> 
   <Columns> 
     ... 
    <asp:TemplateField HeaderText="折标煤<br>（千克标准煤）" ItemStyle-Width="100px" HeaderStyle-VerticalAlign="Middle" HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Center"> 
      <ItemTemplate> 
        <span id="zbm" style="color:blue; cursor:pointer;" runat="server" title='<%#showZBMGS(Eval("DIAN").ToString(),Eval("RELI").ToString(),Eval("YUANMEI").ToString(),Eval("TIANRQ").ToString(),Eval("QIYOU").ToString(),Eval("CHAIYOU").ToString(),Eval("ZSNY").ToString()) %>'><%# Eval("ZBM") %></span> 
      </ItemTemplate> 
     </asp:TemplateField> 
     ... 
   </Columns> 
 </asp:GridView> 

#region 折标煤计算公式显示 2015-09-06 
  /// <summary> 
  /// 获取折标煤的计算公式 
  /// </summary> 
  /// <param name="dian"></param> 
  /// <param name="reli"></param> 
  /// <param name="yuanmei"></param> 
  /// <param name="tianranqi"></param> 
  /// <param name="qiyou"></param> 
  /// <param name="chaiyou"></param> 
  /// <param name="zsny"></param> 
  /// <returns></returns> 
  public string showZBMGS(string dian, string reli, string yuanmei, string tianranqi, string qiyou, string chaiyou, string zsny) 
  { 
   double zbm = ((double.Parse(dian) * 0.1229) + (double.Parse(reli) * 0.0341) + (double.Parse(yuanmei) * 0.7143) + (double.Parse(tianranqi) * 1.2143) + (double.Parse(qiyou) * 1.4714) + (double.Parse(chaiyou) * 1.4571) + (double.Parse(zsny) * 1)) * 10; 
   ZBMGS = "折标煤 = 电 * 0.1229 + 热力 * 0.0341 + 原煤 * 0.7143 + 天然气 * 1.2143 + 汽油 * 1.4714 + 柴油 * 1.4571 + 再生能源 * 1</br>="; 
   ZBMGS += dian + "* 0.1229+" + reli + " * 0.0341+" + yuanmei + " * 0.7143+" + tianranqi + "* 1.2143+" + qiyou + " * 1.4714+" + chaiyou + " * 1.4571+" + zsny + " * 1</br>="; 
   ZBMGS += Math.Round(zbm, 2); 
   return ZBMGS; 
  } 
#endregion 

$(function () { 
  //为控件增加信息提示 2015-09-06 
  $cb = $('#<%=this.GridView1.ClientID%>').find('span[id$="zbm"]'); 
  $($cb).poshytip(); 
});