C#TCP通信问题。客户端发送的消息只能收到第一条。客户端必须断开重新连接，服务器才能再次收到信息。为何？
代码如下：
  private Socket socketListener = null;
  private Thread thread;
  private bool flag;
  private void button1_Click(object sender, EventArgs e)
  {
  if (btnStart.Text == "开启服务器")
  {

  IPHostEntry hostEntry = Dns.GetHostEntry(Dns.GetHostName());
  this.socketListener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
   
  IPAddress ipAddress = IPAddress.Parse("192.168.1.109");
  int port = Int32.Parse(this.txtPoint.Text);
  //hostEntry.AddressList[2].Address  
  IPEndPoint endPoint = new IPEndPoint(ipAddress, port);
  this.socketListener.Bind(endPoint);
  flag = true;
  this.thread = new Thread(new ThreadStart(this.ReceiveMessage));
  this.thread.Start();
  btnStart.Text = "关闭服务器";
  if (!txtClientMessage.InvokeRequired) 
  {
  txtClientMessage.AppendText("服务器已打开\n\r");
  }
   
  }
  else 
  {
  this.socketListener.Close();
  this.thread.Abort();
  this.flag = false;
  }
   
  }


  #region 接收消息

  public delegate void SetTextHandle(string msg);
  private void SetText(string text) 
  {
  if (txtClientMessage.InvokeRequired)
  {
  SetTextHandle set = new SetTextHandle(SetText);
  txtClientMessage.Invoke(set, new object[] { text });
  }
  else 
  {
  this.txtClientMessage.AppendText(text);
  }
  }



  private void ReceiveMessage() 
  {
  while (this.flag) 
  {
  this.socketListener.Listen(30);
  Socket socket = this.socketListener.Accept();
   
  byte[] bytesReceive = new byte[1024];
  int bytesCount = socket.Receive(bytesReceive);
  bool t = socketListener.Connected;
  if (bytesCount > 0) 
  {
  string message = Encoding.Default.GetString(bytesReceive) + "\n\r";
  SetText(message);  
  }
   
  }
  }
  #endregion

------解决方案--------------------
没注意，原来是个按钮事件，稍微修改下

C# code

private void button1_Click(object sender, EventArgs e)
{
    if (btnStart.Text == "开启服务器")
    {
        IPHostEntry hostEntry = Dns.GetHostEntry(Dns.GetHostName());
        this.socketListener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
        IPAddress ipAddress = IPAddress.Parse("192.168.1.109");
        int port = Int32.Parse(this.txtPoint.Text);
        IPEndPoint endPoint = new IPEndPoint(ipAddress, port);
        this.s