TextBox1为什么不能实时显示，问题出在哪里

TextBox1为什么不能实时显示，问题出在哪里

```c#
public Form1()
        {
            InitializeComponent();

            dto.DesIp = "192.168.1.2";
            dto.DesPort = "8787";
            dto.DesName = "NBone";
            DesoutterDriver clinet = new DesoutterDriver(dto);
            clinet.OnInfo += new EventHandler(ShowMsg);
            clinet.OnError += new EventHandler(ShowMsg);
            clinet.OnResponse += new EventHandler(ShowMsg);
            clinet.Start();


        }
        public void ShowMsg(object sender, EventArgs e)
        {

            if (this.InvokeRequired)
            {
                EventHandler d = new EventHandler(ShowMsg);
                TextBox1.Invoke(d, new object[] { sender, e });
            }
            else
            {
                TextBox1.Text += "adfasdf" + "\r\n";
                TextBox1.AppendText(sender + "\r\n");
            }
        }

```

clinet.OnResponse 是个啥东西，定义在哪呢
你自己先好好调试一下，它运行了吗