1-) C# -  soket1

Server için Formumuza 3 Tane Düğme, 2 tane texbox A.Ş. 1 tanede richTextBox ve birde Label koyalım

1-)server.cs

using System;

using System.IO;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Net;

using System.Net.Sockets;

using System.Threading;

namespace Server

{

    public partial class Form1 : Form

    {

        //Gerekli Siniflarin Nesneleri tanimlaniyor

        Thread t;

        IPAddress ipadresimiz;

        TcpListener dinle;

        Socket soket;

        NetworkStream ag;

        StreamReader oku;

        StreamWriter yaz;

        public delegate void ricdegis(string text);

        public Form1()

        {

            InitializeComponent();

        }

        // Serverde Method_1

        public void okumayabasla()

        {

            soket = dinle.AcceptSocket();

            ag = new NetworkStream(soket);

            oku = new StreamReader(ag);

            while (true)

            {

                try

                {

                    string yazi = oku.ReadLine();

                    ekranabas(yazi);

                }

                catch

                {

                    return;

                }

            }

        }

        // Serverde Method_2 (Gelen Veriyi richTextBox icine yazdirmak icin)

        public void ekranabas(string s)

        {

            if (this.InvokeRequired)

            {

                ricdegis degis = new ricdegis(ekranabas);

                this.Invoke(degis, s);

            }

            else

            {

                s = "Server: " + s;

                richTextBox1.AppendText(s + "n");

            }

        }

        // Serverde Method_3 (Serverimizin Port dinlemesine baslamsi icin)

        private void dinlemeye_basla()

        {

            try

            {

            ipadresimiz = IPAddress.Parse("127.0.0.1");

            dinle = new TcpListener(ipadresimiz, Convert.ToInt16(textBox1.Text));

            dinle.Start();

            t = new Thread(new ThreadStart(okumayabasla));

            t.Start();

            richTextBox1.AppendText(DateTime.Now.ToString()+" Dinleme baslatildi...n");

            }

            catch (Exception)

            {

                MessageBox.Show("Dinleme baslatilamadi");

            }

        }

        private void button1_Click(object sender, EventArgs e)

        {

           dinlemeye_basla();

        }

        private void button2_Click(object sender, EventArgs e)

        {

            if (textBox2.Text == "")

                //Burda bos alan göndermeyi önlüyoruz...

                return;

            else

            {

                yaz = new StreamWriter(ag);

                yaz.WriteLine(textBox2.Text);

                yaz.Flush();

                richTextBox1.AppendText(textBox2.Text + "n");

                textBox2.Text = "";

            }

        }

        private void button3_Click(object sender, EventArgs e)

        {

            ag.Close();

        }

    }

}

2-)Client.cs

using System;

using System.IO;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Net;

using System.Net.Sockets;

using System.Threading;

namespace Server

{

    public partial class Form1 : Form

    {

        //Yine gerekli Siniflarin nesneleri tanimlaniyor

        Thread t;

        TcpClient baglantikur;

        NetworkStream ag;

        StreamReader oku;

        StreamWriter yaz;

        public delegate void ricdegis(string text);

        public Form1()

        {

            InitializeComponent();

        }

        // Clintde Method_1 (Gelen veri okunuyor)

        public void okumayabasla()

        {

            ag = baglantikur.GetStream();

            oku = new StreamReader(ag);

            while (true)

            {

                try

                {

                    string yazi = oku.ReadLine();

                    ekranabas(yazi);

                }

                catch

                {

                    return;

                }

            }

        }

        // Clientde Method_2 (Okunan Veri richTextBox icine yaziliyor)

        public void ekranabas(string s)

        {

            if (this.InvokeRequired)

            {

                ricdegis degis = new ricdegis(ekranabas);

                this.Invoke(degis, s);

            }

            else

            {

                s = "Client: " + s;

                richTextBox1.AppendText(s + "n");

            }

        }

        // Clientde Method_3 (Istenilen IP'ye istenen Port üzerinden baglaniliyor)

        public void baglanti_kur()

        {

            try

            {

                //Ben Lochalhos üzerinde deneme yapacagim icin 127.0.0.1 verdim

            baglantikur = new TcpClient("127.0.0.1", Convert.ToInt16(textBox1.Text));

            t = new Thread(new ThreadStart(okumayabasla));

            t.Start();

            richTextBox1.AppendText(DateTime.Now.ToString()+" Baglanti kuruldu...n");

            }

            catch (Exception)

            {

                MessageBox.Show("Server ile baglanti kurulurken hata olustu !");

            }

        }

        private void button1_Click(object sender, EventArgs e)

        {

            baglanti_kur();

        }

        private void button2_Click(object sender, EventArgs e)

        {

            if (textBox2.Text == "")

                //Burda bos alan göndermeyi önlüyoruz...

                return;

            else

            {

                yaz = new StreamWriter(ag);

                yaz.WriteLine(textBox2.Text);

                yaz.Flush();

                richTextBox1.AppendText(textBox2.Text + "n");

                textBox2.Text = "";

            }

        }

        private void button3_Click(object sender, EventArgs e)

        {

            baglantikur.Client.Close();

        }

        private void Form1_Load(object sender, EventArgs e)

        {

        }

    }

}