gridview怎么固定表头？ 好像下面代码没有什么作用，请帮忙看一下

<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> <body style="font-size=12px">
    <form id="form1" runat="server">
    <div style="overflow-y: scroll; height: 200px;width:300px" id="dvBody">
                   <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
                        OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated" >
                     <asp:BoundField DataField="姓名" HeaderText="姓名" />
                      <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" CssClass="Freezing"/>
                    </asp:GridView>
        </div>
    </form>
</body>
 <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" CssClass="Freezing"/>
HeaderStyle 中加入  CssClass="Freezing"  没有作用怎么办？？ 
还有一个问题， div 有滚动条时，点击gridview 里面一行数据，滚动条会自动回到顶部是怎么回事？

解决方案 »

  1.   

    GridView72绝技里不就有固定表头吗？你可以去参考一下！
      

  2.   

    用我的代码试试看，
    <style type="text/css">
        .fixedHeader{
         POSITION: relative; TOP: expression(this.offsetParent.scrollTop); }
        .fixcol{z-index:999; position: relative; left: expression(this.offsetParent.scrollLeft);}
        .fixCol{ POSITION: relative;  Left: expression(this.offsetParent.scrollLeft) }
        </style><div style="overflow:auto; position:relative; width:333px; height: 205px">
                <asp:GridView ID="GridView1" runat="server" Font-Size="12px" BackColor="#FFFFC0" GridLines="Both" CellPadding="4" Width="560" AllowPaging="True" OnRowDataBound="GridView1_RowDataBound" OnSelectedIndexChanging="GridView1_SelectedIndexChanging">
                  <HeaderStyle BackColor="Red" Height="26px" CssClass="fixedHeader" />
                  
                </asp:GridView>
              </div>