I am still using ASP 3.5. I have an ASP User Control:
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="GuideList.ascx.cs" Inherits="GuideList" %>
<asp:DropDownList ID="GL" ClientIDMode="AutoID" runat="server">
<asp:ListItem>Adam</asp:ListItem>
<asp:ListItem>Amanda</asp:ListItem>
<asp:ListItem>Bruce</asp:ListItem>
...
</asp:DropDownList>
This control is placed on an ASPX page several times:
<asp:Content ID="Content2" ContentPlaceHolderID="main" Runat="Server">
...
<p>First Guide <br />
<uc3:GuideList ID="GuideList1" runat="server" />
...
<p>Second Guide <br />
<uc3:GuideList ID="GuideList2" runat="server" />
...
<p>Third Guide <br />
<uc3:GuideList I ...
Go to the complete details ...