怎么用ArrayList做控件的属性。使自定义控件有如下拉列表框中Iitems属性那种效果！

take a look athttp://www.dotnet247.com/247reference/msgs/29/148681.aspxyou can play with the sample in this book:
<<Developing Microsoft ASP.NET Server Controls and Components>>chapter 10 Complex Properties and State Management
Collection Properties—The ImageMap Example you can download the code at
http://www.microsoft.com/mspress/books/companion/5728.asp#Companion%20Content

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你能否给个具体点的例子吧？最好是VB。NET的由于我的英文不是很好所以希望能给具具体点的例子吗？谢谢！！
<script Language="VB" runat="server">
  Sub Page_Load(sender As Object,e As EventArgs)
    Dim Values As ArrayList = new ArrayList()
    Values.Add("北京")
    Values.Add("上海")
    Values.Add("深圳")
    SelectOption.DataSource = Values
    SelectOption.DataBind()
</script>
<Body>
  <select ID="SelectOption" Runat="Server"/>
</Body>