C# 用反射动态绑定事件

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Reflection;
using System.Diagnostics;

namespace WebApplication5
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            EventHandler clickHandler = delegate(object s, EventArgs x) {
                var ctrl = s as WebControl;
                Debug.Print(ctrl.ID);
            };

            var click = Button1.GetType().GetEvents().FirstOrDefault(ei => ei.Name.ToLower() == "click");
            var handler = Delegate.CreateDelegate(clickHandler.GetType(), clickHandler.Method);
            click.AddEventHandler(Button1, handler);
        }
    }
}