C# (CSharp) tcpClient, Airscribe Examples

Programming Language: C# (CSharp)

Class/Type: tcpClient

Examples at hotexamples.com: 4

The TcpClient class in C# is used to establish a connection with a remote TCP host. It provides methods for sending and receiving data across the network. The TcpClient class is part of the System.Net.Sockets namespace and is included in the .NET Framework library.

Example 1:

using System;
using System.Net.Sockets;

class MyTcpClient
{
    static void Main()
    {
        try
        {
            // Create a TcpClient
            TcpClient client = new TcpClient("127.0.0.1", 12345);

            // Get a stream object for reading and writing
            NetworkStream stream = client.GetStream();

            // Send a message to the server
            byte[] message = System.Text.Encoding.ASCII.GetBytes("Hello, server!");
            stream.Write(message, 0, message.Length);

            // Receive the server's response
            byte[] buffer = new byte[1024];
            int bytesRead = stream.Read(buffer, 0, buffer.Length);
            string response = System.Text.Encoding.ASCII.GetString(buffer, 0, bytesRead);
            Console.WriteLine("Server response: {0}", response);

            // Clean up
            stream.Close();
            client.Close();
        }
        catch (Exception e)
        {
            Console.WriteLine("Exception: {0}", e);
        }
    }
}

In this example, a TCP connection is established with a remote server using the server's IP address and port number. A message is sent to the server and the response is received.

Example 2:

using System;
using System.Net;
using System.Net.Sockets;

class MyTcpListener
{
    static void Main()
    {
        try
        {
            // Start a TCP listener listening for incoming connections on port 12345
            TcpListener listener = new TcpListener(IPAddress.Any, 12345);
            listener.Start();

            Console.WriteLine("Waiting for a connection...");

            // Accept an incoming connection
            TcpClient client = listener.AcceptTcpClient();
            Console.WriteLine("Connection accepted.");

            // Get a stream object for reading and writing
            NetworkStream stream = client.GetStream();

            // Receive a message from the client
            byte[] buffer = new byte[1024];
            int bytesRead = stream.Read(buffer, 0, buffer.Length);
            string message = System.Text.Encoding.ASCII.GetString(buffer, 0, bytesRead);
            Console.WriteLine("Message received: {0}", message);

            // Send a response to the client
            byte[] response = System.Text.Encoding.ASCII.GetBytes("Hello, client!");
            stream.Write(response, 0, response.Length);

            // Clean up
            stream.Close();
            client.Close();
            listener.Stop();
        }
        catch (Exception e)
        {
            Console.WriteLine("Exception: {0}", e);
        }
    }
}

In this example, a TCP listener is started on the local machine to accept incoming connections on port 12345. When a client connects, a message is received from the client and a response is sent back. The listener is then closed when the communication is complete. Package library: The TcpClient class is included in the System.dll assembly, which is part of the .NET Framework. No external packages are required to use the TcpClient class.

C# (CSharp) tcpClient - 4 examples found. These are the top rated real world C# (CSharp) examples of tcpClient from package Airscribe extracted from open source projects. You can rate examples to help us improve the quality of examples.

Frequently Used Methods

Show Hide

connect(2)

StartClient(1)

Inheritance: MonoBehaviour

tcpClient Class Documentation

Example #1

Show file

File: Program.cs Project: vermosen/clientServerCSharp

        static ManualResetEvent resetEvent;                 // blocking event

        // main
        static void Main(string[] args)
        {
            resetEvent = new ManualResetEvent(false);
            tcpClient c = new tcpClient();

            c.connect("127.0.0.1", 10001);
            resetEvent.WaitOne();                           // Blocks until Set() is called
        }

Example #2

Show file

        public ConnectedRobot(MainWindow mainWindow, string ip)
        {
            InitializeComponent();

            this.mainWindow = mainWindow;
            controller      = new ControllerController(this);
            hardware        = new Hardware(this);

            settings = new Settings();
            memory   = new MemoryManager(this);

            client = new tcpClient(ip);
            client.connect();

            sensorData = new SensorData(this);
            client.taggedReceivers.Add(sensorData.tag, sensorData.receive);

            controller.startThread();

            Closing += ConnectedRobot_Closing;
        }

Example #3

Show file

        static void Main(string[] args)
        {
            Console.WriteLine("A iniciar servidor ");

            tcplistener tcplisterner = null;

            tcpClient tcpclient = null;

            networkstream networkstream = null;

            try
            {
                Console.WriteLine(" a aguardar");

                ipendpoint endpoint = new ipendpoint(IPAddress.loopback);

                tcplisterner = new tcplistener(endpoint);

                tcplisterner.start();
                tcpclient = tcplisterner.accepttcpclient();
            }
        }

Example #4

Show file

        private void button2_Click(object sender, EventArgs e)
        {
            button3.Enabled = true;  //Кнопка добавления заявки в DataGrid на форме
            button2.Enabled = false; //Кнопка отправки сообщения
            button1.Enabled = true;  //Кнопка повторной отправки сообщения

            if ((comboBox1.Text == "") || (comboBox2.Text == "") || (richTextBox1.Text == "") || (richTextBox2.Text == ""))
            {
                if (comboBox1.Text == "")
                {
                    comboBox1.BackColor = Color.LightCoral; button2.Enabled = true; pictureBox1.Visible = true;
                }
                if (comboBox2.Text == "")
                {
                    comboBox2.BackColor = Color.LightCoral; button2.Enabled = true; pictureBox2.Visible = true;
                }
                if (richTextBox1.Text == "")
                {
                    richTextBox1.BackColor = Color.LightCoral; button2.Enabled = true; pictureBox3.Visible = true;
                }
                if (richTextBox2.Text == "")
                {
                    richTextBox2.BackColor = Color.LightCoral; button2.Enabled = true; pictureBox4.Visible = true;
                }

                MessageBox.Show("Проверьте заполнение полей выделенных красным цветом", "Ошибка!", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            else
            {
                comboBox1.BackColor    = Color.LightGreen;
                comboBox2.BackColor    = Color.LightGreen;
                richTextBox1.BackColor = Color.LightGreen;
                richTextBox2.BackColor = Color.LightGreen;


                int  i     = 0;
                bool iserr = false;

                string lineA  = comboBox1.Text;
                string lineB  = comboBox2.Text;
                string lineC  = richTextBox2.Text;
                string lineD  = richTextBox1.Text;
                string lineId = CreateId();

                try
                {
                    tcpClient client = new tcpClient(lineA, lineB, lineC, lineD, _ip);
                    client.StartClient();
                    otvetClient = client.ansver;
                }
                catch (Exception ex)
                {
                    i++;
                    richTextBox3.BackColor = Color.Red;
                    richTextBox3.Text      = "\r\r\r\r Произошла внутрення систкмная ошибка! \r Просьба обратиться к системному \r Администратору";
                    if (i > 1)
                    {
                        richTextBox1.Text = ex.ToString();
                    }
                    button2.Enabled = true;
                    iserr           = true;
                }

                if (iserr == false)
                {
                    if (otvetClient != "Ok")
                    {
                        richTextBox3.Text = "\r\r\r\r            Повторите отправку. Спасибо.";
                        MessageBox.Show("Произошла системная ошибка. Попробуйте повторить отправку. \r Если ситуация не изменится обратитесь в тех.поддержку.", "Внимание", MessageBoxButtons.OK, MessageBoxIcon.Error);
                        comboBox1.BackColor    = Color.White;
                        comboBox2.BackColor    = Color.White;
                        richTextBox1.BackColor = Color.White;
                        richTextBox2.BackColor = Color.White;
                        button2.Enabled        = true;
                        return;
                    }
                    else
                    {
                        richTextBox3.Text = " Ответ сервера:... " + otvetClient + "\r ------------------------------------------------------" + "\r Заявка отправлена" + "\r ------------------------------------------------------" + "\r Можете закрыть программу";
                    }
                    MessageBox.Show("Заявка отправлена", "Ок", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
                    pictureBox1.Visible = false;
                    pictureBox2.Visible = false;
                    pictureBox3.Visible = false;
                    pictureBox4.Visible = false;
                    AddDataTabs(lineA, lineB, lineC, lineId);
                    _count++;
                    label7.Text = Convert.ToString(_count);
                }
                //button1.Enabled = false;
                //comboBox1.Enabled = false;
                //comboBox2.Enabled = false;
                //textBox1.Enabled = false;
            }
        }