GridView with fixed Headers

<style type="text/css">
  .header
  {
    font-weight:bold;
    position:absolute;
    background-color:White;
  }
  </style>


Add this style sheet in your page





<asp:GridView ID="GridView1" runat="server" Height="143px" Width="600px" 
                       HeaderStyle-CssClass ="header">