This is a sample which shows how to, by choosing items in a RadioButtonList, you can show (make visible/invisible) only certain panels.
<script language="VB" Runat="server"> Sub GetPanel(Source as Object, E as EventArgs) Select Case rb1.selectedItem.Value Case 1 pnl1.visible=True pnl2.visible=False pnl3.visible=False Case 2 pnl1.visible=False pnl2.visible=True pnl3.visible=False Case 3 pnl1.visible=False pnl2.visible=False pnl3.visible=True End Select End Sub </script> <html> <head> <meta name="GENERATOR" Content="ASP Express 5.0"> <title>RadioButtonList - Panels</title> </head> <body> <form id="form1" Runat="server"> <asp:RadioButtonList ID="rb1" Runat="Server" OnSelectedIndexChanged="GetPanel" AutoPostBack="True"> <asp:ListItem Value="1">Panel 1</asp:ListItem> <asp:ListItem Value="2">Panel 2</asp:ListItem> <asp:ListItem Value="3">Panel 3</asp:ListItem> </asp:RadioButtonList> <asp:panel ID="pnl1" Runat="server" Visible="False"> This is panel 1 </asp:panel> <asp:panel ID="pnl2" Runat="server" Visible="False"> This is panel 2 </asp:panel> <asp:panel ID="pnl3" Runat="server" Visible="False"> this is panel 3 </asp:panel> </form> </body> </html>