TCP Server with Data Received Event

Question

Hello everyone, 

I tried to complete TCP server in windows form application. I have class Server, which creates TCP Listener and waiting for clients requests. And class Form1, where I want to display received values. But I think, that event is no working. Could someone tell me, where can be a problem? Thaks a lot.

Program.cs: 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;

namespace TCP_Monitor
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

Server.cs: 

using System;
using System.Text;
using System.Net.Sockets;           
using System.Threading;             
using System.Net;                   

namespace TCP_Monitor
{
    class Server
    {   
        private TcpListener tcpListener;
        
        private Thread listenThread;
        
        public string Rx_Data;

        public event EventHandler Received;

        public Server()
        {
            this.tcpListener = new TcpListener(IPAddress.Any, 2032);

            this.listenThread = new Thread(new ThreadStart(ListenForClients));

            this.listenThread.Start();
        }


        private void ListenForClients()
        {
            this.tcpListener.Start();

            while (true)
            {
                TcpClient client = this.tcpListener.AcceptTcpClient();

                Thread clientThread = new Thread(new ParameterizedThreadStart(HandleClientComm));

                clientThread.Start(client);
            }
        }

        protected virtual void IsDataReceived(EventArgs e)
        {
            if (Received != null)
                Received(this, e);
        }

        private void HandleClientComm(object client)
        {
            TcpClient tcpClient = (TcpClient)client;

            NetworkStream clientStream = tcpClient.GetStream();

            byte[] message = new byte[4096];

            int bytesRead;

            while (true)
            {
                bytesRead = 0;

                try
                {
                    bytesRead = clientStream.Read(message, 0, 4096);
                }
                catch
                {
                    break;
                }

                if (bytesRead == 0)
                {
                    break;
                }

                ASCIIEncoding encoder = new ASCIIEncoding();

                //GetString - prevod rozsahu bajtu v poli do string

                Rx_Data = encoder.GetString(message, 0, bytesRead);

                IsDataReceived(EventArgs.Empty);
            }
        }
    }
}

Form1.cs: 

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace TCP_Monitor
{
    public partial class Form1 : Form
    {
        Server server = new Server();

        public Form1()
        {
            InitializeComponent();

            server.Received += new EventHandler(server_Received);    

        }

        public void server_Received(object sender, EventArgs e)
        {
            textBox1.Text = server.Rx_Data;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            
        }       
        
        
    }
}

Form1.Designer.cs:

namespace TCP_Monitor
{
    partial class Form1
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.button1 = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // textBox1
            // 
            this.textBox1.BackColor = System.Drawing.SystemColors.ControlLightLight;
            this.textBox1.Location = new System.Drawing.Point(12, 12);
            this.textBox1.Multiline = true;
            this.textBox1.Name = "textBox1";
            this.textBox1.ReadOnly = true;
            this.textBox1.Size = new System.Drawing.Size(638, 129);
            this.textBox1.TabIndex = 0;
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(142, 276);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 1;
            this.button1.Text = "button1";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(662, 371);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.textBox1);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
            this.Name = "Form1";
            this.Text = "TCP Monitor v1.0";
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.TextBox textBox1;
        private System.Windows.Forms.Button button1;

    }
}

Answer 1

Aha, koukám že to je český fórum :D. Mám prostě problém s tím předat přijatá data ze třídy Server do textBox1. Tak aby se tato hodnota měnila podle toho, jaká data budou přijata. Vytvořil jsem tam i event, který by se měl spustit po přijetí zprávy od klienta, ale bohužel se mi žádné hodnoty v textboxu nezobrazují. Díky za jakoukoli pomoc.