Hi,

you need to expose it as full-blown event, not as property. Page parser in
ASP.NET is then able to wire syntax On<EventName>="handler_method_name" into
your event as listener. Therefore the code would be pretty much like asa
follows. Read also the comments I've made into the code.

/// <summary>
   /// Static key of all the event handlers
   /// </summary>
   private static readonly object EventClick = new object();

   /// <summary>
   /// This is the event where event handlers are collected into a
EventHandlerList
   /// Page parser parses them from declarative syntax or you add them in
code
   /// </summary>
   public event EventHandler Submit
   {
       add
       {
           Events.AddHandler(EventClick, value);
       }
       remove
       {
           Events.RemoveHandler(EventClick, value);

       }
   }

   /// <summary>
   /// This method is used to raise Submit event. Do not *confuse* with
aspx's OnSubmit="method_name" syntax
   /// </summary>
   /// <param name="e"></param>
   protected virtual void OnSubmit(EventArgs e)
   {
       EventHandler handler = Events[EventClick] as EventHandler;
       if (handler != null)
           handler(this, Error);
   }

   /// When handling Button's click inside the control, you'd call
this.OnSubmit(EventArgs.Empty);
   /// when you want the event to be raised