net 2.0 中如何在线程引发的事件中控制forms controls

这个是安全方法.

 private void Form1_Load(object sender, EventArgs e)
        {
            Post p = new Post();
            p.OnPost += new Post.OnPostHandler(p_Post);
            t = new Thread(new ThreadStart(p.Go));
        }

        void p_Post(int m, string result)
        {
            if (this.textBox1.InvokeRequired)
            {
                Post.OnPostHandler d = new Post.OnPostHandler(p_Post);
                this.Invoke(d,new object[]{m,result});
               
            }
            else
            {
                this.textBox1.Text = m.ToString();
            }
           
        }

类

class Post
    {
       public Post()
       {
       }
        public delegate void OnPostHandler(int m,string result);
        public event OnPostHandler OnPost;
        private static int count = 0;
        public void Go()
        {

            WebClient webClient = new WebClient();
            webClient.Headers.Add("Accept", "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg,*/*");
            webClient.Headers.Add("Referer", "http://www.xmsell.com/zhuanti/jjworld/match_show.asp?id=3");
            webClient.Headers.Add("Accept-Language", "zh-cn");
            webClient.Headers.Add("Content-Type", "application/x-www-form-urlencoded");
            webClient.Headers.Add("Accept-Encoding", "gzip, deflate");
            webClient.Headers.Add("User-Agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1;)");
            string postStr = "Grade=%CD%B6%CB%FB%D2%BB%C6%B1%A3%A1%A3%A1%A3%A1&Submit=+%CD%B6+%C6%B1+";
            byte[] data = Encoding.ASCII.GetBytes(postStr);
            while (true)
            {
                count++;
                byte[] responseArray = webClient.UploadData("http://www.xmsell.com/zhuanti/jjworld/match_show.asp?action=add&id=3", "POST", data);
                // Thread.Sleep(500);
                string responseStr = Encoding.GetEncoding("Gb2312").GetString(responseArray);

                if (OnPost != null)
                {
                    OnPost(count, responseStr);
                }
            }
        }
    }