<asp:CheckBoxList ID="CheckBoxList1" runat="server" 
      RepeatLayout="OrderedList">
  <asp:ListItem Text="CheckBoxList" Value="cbl" />
</asp:CheckBoxList>

<asp:RadioButtonList ID="RadioButtonList1" runat="server"  
      RepeatLayout="UnorderedList">
  <asp:ListItem Text="RadioButtonList" Value="rbl" />
</asp:RadioButtonList>