ASP.NET自定义控件事件响应

1.重载protected override bool OnBubbleEvent(object source, EventArgs args)
OnBubbleEvent是控件内包含的控件向外层控件作事件冒泡
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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;      //定义这个是为了在控件外进行事件响应处理
     
        protected override void CreateChildControls()
        {
            Controls.Clear();
            btnSave = new Button();
            btnSave.Text = "Click Me";
            btnSave.CommandName = "事件的名字随便取";   //这是事件发生时，事件的名字，区分事件用
            btnSave.CommandArgument = "事件的参数，看需要"; //这是事件发生后，用来传参数的，可以没有
            Controls.Add(btnSave);
        }
        protected override bool OnBubbleEvent(object source, EventArgs args)
        {
        &nbs