ClickEventHandler

using System;

namespace ConsoleApplication1
{
    public delegate void ClickEventHandler(object sender, EventArgs e);

    public class MyButton
    {
        public event ClickEventHandler ClickEvent;
        public void Click()
        {
            if (ClickEvent != null)
            {
                Console.WriteLine("MyButton: 我被单击了");
                ClickEvent(this, null);
            }
        }
    }
    public class MyForm
    {
        public MyButton myButton = new MyButton();
        public MyForm()
        {
            myButton.ClickEvent += new ClickEventHandler(OnClickEvent);
        }
        void OnClickEvent(object sender, EventArgs e)
        {
            Console.WriteLine("MyForm: 我知道你被单击了！");
        }
    }
    class Program11
    {
        static void Main11()
        {
            MyForm form = new MyForm();
            form.myButton.Click();
        }
    }
}