gridview用css固定表头失效,请帮助
gridview固定表头,原来使用网上介绍的css方法,原来一直用得好好的,引用到另外一个网站去,却用不了,固定表头功能失效,代码如下,请各位大侠帮忙看看
<%@ Page Language="VB" EnableEventValidation="false" AutoEventWireup="true" CodeFile="Tjkcx.aspx.vb" Inherits="Tjkcx" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script type ="text/javascript" src="WebControls/My97DatePicker/WdatePicker.js"></script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>选择产品</title>
<style>
.Freezing
{
position:relative;
table-layout:fixed;
top:expression(this.offsetParent.scrollTop);
z-index:10;
}
.Freezing th{text-overflow:ellipsis;overflow:hidden;white-space:nowrap;padding:2px;}
</style>
<style>
.style1
{
width: 280px;
}
.style2
{
height: 2px;
width: 280px;
}
.style3
{
width: 78px;
}
.style4
{
width: 199px;
}
</style>
<script runat="server">
'第一行增加 EnableEventValidation="false" AutoEventWireup="true"
Protected Sub Dc_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Dc.Click
Response.Clear()
Response.Buffer = True
Response.Charset = "GB2312"
Response.AppendHeader("Content-Disposition", "attachment;filename=Detail.xls")
Response.ContentEncoding = System.Text.Encoding.UTF7
Response.ContentType = "application/ms-excel"
Dim oStringWriter As System.IO.StringWriter = New System.IO.StringWriter
Dim oHtmlTextWriter As System.Web.UI.HtmlTextWriter = New System.Web.UI.HtmlTextWriter(oStringWriter)
Me.GV.RenderControl(oHtmlTextWriter)
Response.Output.Write(oStringWriter.ToString)
Response.Flush()
Response.End()
End Sub
Public Overloads Overrides Sub VerifyRenderingInServerForm(ByVal control As Control)
End Sub
</script>
</head>
<body style="width:auto " >
<form id="form1" runat="server">
<div>
<asp:Label ID="Label1" runat="server" Font-Overline="False" Font-Size="Small" Font-Underline="True"
ForeColor="Red" Style="z-index: 100; left: 0px; position: absolute; top: 0px"
Text="系统功能>>推荐卡查询" Width="144px"></asp:Label>
<asp:Panel ID="Panel1" runat="server" ScrollBars="Both" Style="z-index: 101;
left: 4px; position: absolute; top: 87px; heig