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1.ÖØÔØprotected override bool OnBubbleEvent(object source, EventArgs args)
OnBubbleEventÊǿؼþÄÚ°üº¬µÄ¿Ø¼þÏòÍâ²ã¿Ø¼þ×÷ʼþðÅÝ
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using System;
using System.Collections.Generic;
using System.Text;
using System.Web.UI.WebControls;
using System.Web.UI;
using System.ComponentModel;
    public class uc_DanXuan : CompositeControl
    {
        private Button btnSave = null;                          
        public EventHandler SaveAnswer;      //¶¨ÒåÕâ¸öÊÇΪÁËÔڿؼþÍâ½øÐÐʼþÏìÓ¦´¦Àí
     
        protected override void CreateChildControls()
        {
            Controls.Clear();
            btnSave = new Button();
            btnSave.Text = "Click Me";
            btnSave.CommandName = "ʼþµÄÃû×ÖËæ±ãÈ¡";   //ÕâÊÇʼþ·¢Éúʱ£¬Ê¼þµÄÃû×Ö£¬Çø·ÖʼþÓÃ
            btnSave.CommandArgument = "ʼþµÄ²ÎÊý£¬¿´ÐèÒª"; //ÕâÊÇʼþ·¢Éúºó£¬ÓÃÀ´´«²ÎÊýµÄ£¬¿ÉÒÔûÓÐ
            Controls.Add(btnSave);
        }
        protected override bool OnBubbleEvent(object source, EventArgs args)
        {
        &nbs