سوال: برنامه ی ارسال پیام در سی‌شارپ با کمک server و client

سلام
خسته نباشید
من در C#‎‎‎‎ برنامه server و client رو نوشتم
من هر وقت برنامه ی server رو اجرا میکنم چون هیچ client ی متصل نیست هنک میکنه. چطوری به سیستم بگم که هر وقت cliet در خواست فرستاد متصل بشه

namespace Server

{

class Program

{IPAddress localAdd = IPAddress.Parse(SERVER_IP);

            TcpListener listener = new TcpListener(localAdd, PORT_NO);

            Console.WriteLine("Listening...");

            listener.Start();

 

            //---incoming client connected---

            TcpClient client = listener.AcceptTcpClient();

 

            //---get the incoming data through a network stream---

            NetworkStream nwStream = client.GetStream();

            byte[] buffer = new byte[client.ReceiveBufferSize];

 

            //---read incoming stream---

            int bytesRead = nwStream.Read(buffer, 0, client.ReceiveBufferSize);

 

            //---convert the data received into a string---

            string dataReceived = Encoding.ASCII.GetString(buffer, 0, bytesRead);

            Console.WriteLine("Received : " + dataReceived);

 

            //---write back the text to the client---

            Console.WriteLine("Sending back : " + dataReceived);

            nwStream.Write(buffer, 0, bytesRead);

            client.Close();

            listener.Stop();

            Console.ReadLine();

        }

    }

}

namespace Client

{

    class Program

    {

        const int PORT_NO = 5000;

        const string SERVER_IP = "127.0.0.1";

        static void Main(string[] args)

        {

            //---data to send to the server---

            string textToSend = DateTime.Now.ToString();

 

            //---create a TCPClient object at the IP and port no.---

            TcpClient client = new TcpClient(SERVER_IP, PORT_NO);

            NetworkStream nwStream = client.GetStream();

            byte[] bytesToSend = ASCIIEncoding.ASCII.GetBytes(textToSend);

 

            //---send the text---

            Console.WriteLine("Sending : " + textToSend);

            nwStream.Write(bytesToSend, 0, bytesToSend.Length);

 

            //---read back the text---

            byte[] bytesToRead = new byte[client.ReceiveBufferSize];

            int bytesRead = nwStream.Read(bytesToRead, 0, client.ReceiveBufferSize);

            Console.WriteLine("Received : " + Encoding.ASCII.GetString(bytesToRead, 0, bytesRead));

            Console.ReadLine();

            client.Close();

        }

    }

}