Socket Coding | source: www

//Socket Programming Code

using System;
using System.Net.Sockets;
public class AsynchIOServer
{
public static void Main()
{
TCPListener tcpListener = new TCPListener(10);
tcpListener.Start();
Socket socketForClient = tcpListener.Accept();
if (socketForClient.Connected)
{
Console.WriteLine("Client connected");
NetworkStream networkStream = new NetworkStream(socketForClient);
System.IO.StreamWriter streamWriter =
new System.IO.StreamWriter(networkStream);
System.IO.StreamReader streamReader =
new System.IO.StreamReader(networkStream);
string theString = "Sending";
streamWriter.WriteLine(theString);
Console.WriteLine(theString);
streamWriter.Flush();
theString = streamReader.ReadLine();
Console.WriteLine(theString);
streamReader.Close();
networkStream.Close();
streamWriter.Close();
}
socketForClient.Close();
Console.WriteLine("Exiting...");
}
}

Client Code:

using System;
using System.Net.Sockets;
public class Client
{
static public void Main( string[] Args )
{
TCPClient socketForServer;
try
{
socketForServer = new TCPClient("localHost", 10);
}
catch
{
Console.WriteLine(
"Failed to connect to server at {0}:999", "localhost");
return;
}
NetworkStream networkStream = socketForServer.GetStream();
System.IO.StreamReader streamReader =
new System.IO.StreamReader(networkStream);
System.IO.StreamWriter streamWriter =
new System.IO.StreamWriter(networkStream);
try
{
string outputString;
// read the data from the host and display it
{
outputString = streamReader.ReadLine();
Console.WriteLine(outputString);
streamWriter.WriteLine("Client Message");
Console.WriteLine("Client Message");
streamWriter.Flush();
}
}
catch
{
Console.WriteLine("Exception reading from Server");
}
// tidy up
networkStream.Close();
}
}