Hi all,

I am new to sockets and the way .NET implements it. I am trying to develop a
small test app. where a client connects to a server application and server
and sends messages. The server displays it in a WinForm. I am using asynch.
socket calls to achieve that. I have two issues with this.

First, i can only display the first message sent to the server. How can i
set the server run in a loop to listen to the incoming messages. The server
code here is below.
public ChatServer()
 {

  System.Net.IPHostEntry ipHostEntry =
Dns.Resolve(System.Net.Dns.GetHostName());
  int port = FindUnusedPort(ipHostEntry.AddressList[0]);

  System.Net.IPEndPoint ipEndPoint = new
IPEndPoint(ipHostEntry.AddressList[0],port);
  listener = new
Socket(ipEndPoint.AddressFamily,SocketType.Stream,ProtocolType.Tcp);

  listener.Bind(ipEndPoint);
  listener.Listen(10);

  IAsyncResult ar = listener.BeginAccept(new
System.AsyncCallback(OnConnectRequst),listener);

 }
public void OnConnectRequst(IAsyncResult result)
 {
  try
  {
   listener = (Socket ) result.AsyncState;
   m_socClient = listener.EndAccept(result);
    IAsyncResult ar =
m_socClient.BeginReceive(m_DataBuffer,0,m_DataBuffer.Length,SocketFlags.None
,new AsyncCallback(OnRecieve),m_socClient);
  }
  catch (SocketException e)
  {
   Console.WriteLine( e.Message);
  }
 }
 public void OnMessageRecieved(string message)
 {
  this.messageRecieved(message);
 }
 public void OnRecieve(IAsyncResult result)
 {
  m_socClient = (Socket) result.AsyncState;
  int iRx = 0;
  iRx = m_socClient.EndReceive(result);
  if (iRx>1)
  {
   string message = Encoding.ASCII.GetString(m_DataBuffer);
   this.OnMessageRecieved(message);
  }
 }

Second, The client sends a message and the server recieves it. I close the
client application and then reopen it connect to server and send message.
But the server doesn't recieves it.

Navin