简单一句跨线程访问控件 和事件 消息传递

    this.Invoke(new Action(() =>
                                    {
                                        this.btnReplay.Enabled = true;
                                    }));

//定义
  public delegate void OnUpdateMessEventHandler(string mess);
        public event OnUpdateMessEventHandler OnUpdateMessEvent;
//事件源
 OnUpdateMessEvent("User 在主函数里面Remove相关UserList，脱离的线程ID=" + UserThread.ManagedThreadId.ToString() + ";脱离的MeterIP=" + MeterIP);

//接收
  UserClass UserClient = new UserClass(NewClient, 10086);
          
                  Thread ClientReceiveThread = new Thread(new ThreadStart(UserClient.ReciveData));
                UserClient.OnUpdateMessEvent += Cli_OnUpdateMessEvent;

    private void Cli_OnUpdateMessEvent(string mess)
        {
            UpMess(mess);
        }
        void  UpMess(string mess)
        {
            this.Invoke(new Action(() =>
            {
                this.richTextBox1.AppendText(mess + "\r\n");
            }));
        }