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I can send and receive data between two formapp.

C#
using System;
using System.Net.Sockets;
using System.Text;
using System.Windows.Forms;

namespace Client
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private static Socket ClientSock;

        private void Form1_Load(object sender, EventArgs e)
        {
            ClientSock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            ClientSock.Connect("127.0.0.1", 1050);
        }

        private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == (char)Keys.Enter)
            {
                NetworkStream Clientstream = new NetworkStream(ClientSock);
                byte[] buffer1 = System.Text.Encoding.ASCII.GetBytes(textBox1.Text);
                ClientSock.Send(buffer1);
                Clientstream.Flush();
                listBox1.Items.Add("Me: " + textBox1.Text);
                textBox1.Clear();
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            byte[] buffer = new byte[100];
            NetworkStream Clientstream = new NetworkStream(ClientSock);
            ClientSock.Receive(buffer);
            string Data = Encoding.ASCII.GetString(buffer);
            listBox1.Items.Add("Server: " + Data);
            Clientstream.Flush();
        }
    }
}




using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Windows.Forms;

namespace Server1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private static Socket ServerSock;

        private void Form1_Load(object sender, EventArgs e)
        {
            ServerSock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            IPEndPoint SockAdd = new IPEndPoint(IPAddress.Any, 1050);
            ServerSock.Bind(SockAdd);
            ServerSock.Listen(100);
            ServerSock = ServerSock.Accept();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                NetworkStream Serverstream = new NetworkStream(ServerSock);
                byte[] buffer2 = new byte[100];
                ServerSock.Receive(buffer2);
                string Data = Encoding.ASCII.GetString(buffer2);
                listBox1.Items.Add("Maryam: " + Data);
                Serverstream.Flush();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }
        }

        private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == (char)Keys.Enter)
            {
                NetworkStream Serverstream = new NetworkStream(ServerSock);
                byte[] buffer3 = new byte[100];
                buffer3 = System.Text.Encoding.ASCII.GetBytes(textBox1.Text);
                ServerSock.Send(buffer3);
                Serverstream.Flush();
                listBox1.Items.Add("Me: " + textBox1.Text);
                textBox1.Clear();
            }
        }
    }
}
Posted

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)



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