C#winform中怎么将程序最小化到系统托盘

1.在form中添加一个NotifyIcon控件   

2.把87.ico这个图标放在/bin/Debug目录下

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace 将程序最小化到系统托盘
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            this.notifyIcon1 = new System.Windows.Forms.NotifyIcon(this.components);
            notifyIcon1.Icon = new Icon("87.ico");//指定一个图标   
            notifyIcon1.Visible = false;
            notifyIcon1.Click += new System.EventHandler(this.notifyIcon1_Click);
            this.SizeChanged += new System.EventHandler(this.Form1_SizeChanged);   
    

        }

        private void Form1_SizeChanged(object sender, EventArgs e)
        {
            if (this.WindowState == FormWindowState.Minimized)//最小化   
            {
                this.ShowInTaskbar = false;
                this.notifyIcon1.Visible = true;
            }   

        }

              private void notifyIcon1_Click(object sender, EventArgs e)
        {
            if (this.WindowState == FormWindowState.Minimized)
                this.WindowState = FormWindowState.Normal;
            this.Activate();
            this.notifyIcon1.Visible = false;
            this.ShowInTaskbar = true;   

        }

    }
}