线程操作出现错误，请求支招？

[chp845]

  public partial class Form1 : Form
    {
        private IPAddress myIP = IPAddress.Parse("127.0.0.1");
        private IPEndPoint MyServer;
        private Socket sock;
        private bool check = true;
        private Socket accSock;
        public Form1()
        {
            InitializeComponent();
        }

        private void accp()
        {
            try
            {
                MyServer = new IPEndPoint(myIP, Int32.Parse(textBox2.Text));
                sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                sock.Bind(MyServer);
                sock.Listen(50);
                textBox3.AppendText("主机" + textBox1.Text + "端口" + textBox2.Text + "开始监听.....\r\n");
                accSock = sock.Accept();
                if (accSock.Connected)
                {
                    textBox3.AppendText("与客户建立连接");
                    while (check)
                    {
                        Byte[] rec = new Byte[64];
                        NetworkStream netStream = new NetworkStream(accSock);
                        netStream.Read(rec, 0, rec.Length);
                        string recMessage = System.Text.Encoding.BigEndianUnicode.GetString(rec);
                        richTextBox1.AppendText(recMessage + "\r\n");
                    }
                }
            }
            catch(Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
           
        }

        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                myIP = IPAddress.Parse(textBox1.Text);
            }
            catch 
            {
                MessageBox.Show("您输入的IP地址格式不正确，请重新输入!");
            }
            try
            {
                Thread thread=new Thread(new ThreadStart(accp));
                thread.Start();
            }
            catch (Exception ex)
            {
                textBox3.AppendText(ex.Message);
            }
        }
｝

点击button1后，出现错误：
线程间操作无效：从不是创建控件“textBox3”的线程访问它，

[chp845]

请求帮助了呀！求救了呀！

[杨友山]

要写委托呢

private delegate void accpDelegate();
private void accp()
{
if (!this.InvokeRequired)
{
try
{
MyServer = new IPEndPoint(myIP, Int32.Parse(textBox2.Text));
sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
sock.Bind(MyServer);
sock.Listen(50);
textBox3.AppendText("主机" + textBox1.Text + "端口" + textBox2.Text + "开始监听.....\r\n");
accSock = sock.Accept();
if (accSock.Connected)
{
textBox3.AppendText("与客户建立连接");
while (check)
{
Byte[] rec = new Byte[64];
NetworkStream netStream = new NetworkStream(accSock);
netStream.Read(rec, 0, rec.Length);
string recMessage = System.Text.Encoding.BigEndianUnicode.GetString(rec);
richTextBox1.AppendText(recMessage + "\r\n");
}
}
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
}
}
else
{
this.Invoke(new accpDelegate(accp) );
}

}

[run_bizi]

C#控件是不能夸线程访问的，如果要访问就必须使用委托

[why]

最简单的
添加个这个2005里面
System.Windows.Forms.Control.CheckForIllegalCrossThreadCalls = false;

[chp845]

明白了，线程不支持跨控件操作！！！