<%@ Register Namespace="Retail.UI.Web.Controls" TagPrefix="retail" %> ... <retail:Options ID="opt" runat="server"> <retail:Option Text="?????1"> </retail:Option> <retail:Option Text="?????2"> </retail:Option> </retail:Options> ... ---- class with control ------------------------------------------- using System.Collections.Generic; using System.ComponentModel; using System.Web.UI; using System.Web.UI.WebControls; namespace Retail.UI.Web.Controls { [ToolboxData("<{0}:Options runat=server></{0}:Options>")] [DefaultProperty("Items")] [ParseChildren(true, "Items")] public class Options : WebControl { private List<Option> _list; public Options() { _list = new List<Option>(); this.EnableViewState = false; } [PersistenceMode(PersistenceMode.InnerDefaultProperty)] [Themeable(false)] public List<Option> Items { get { return _list; } } protected override void RenderContents(HtmlTextWriter writer) { // ... } } [ParseChildren(false)] [PersistChildren(false)] public class Option { private string _text; public Option() { } public string Text { get { return _text; } set { _text = value; } } } }