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  1. using System;
  2. using System.Collections.Generic;
  3. using System.ComponentModel;
  4. using System.Data;
  5. using System.Diagnostics;
  6. using System.Drawing;
  7. using System.Linq;
  8. using System.Net;
  9. using System.Net.Sockets;
  10. using System.Text;
  11. using System.Threading;
  12. using System.Threading.Tasks;
  13. using System.Windows.Forms;
  14.  
  15. namespace UDPTest
  16. {
  17.     public partial class Form1 : Form
  18.     {
  19.         public Form1()
  20.         {
  21.             InitializeComponent();
  22.         }
  23.  
  24.  
  25.         private void button1_Click(object sender, EventArgs e)
  26.         {
  27.             UdpClient server = new UdpClient(8008);
  28.             IPEndPoint remoteIPEndPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 8008);
  29.  
  30.             Thread serverThread = new Thread(delegate()
  31.                 {
  32.                     Thread serverReceive = new Thread(delegate()
  33.                         {
  34.                             while(true)
  35.                             {
  36.                                 byte[] receivedBytes = server.Receive(ref remoteIPEndPoint);
  37.                                 string data = Encoding.UTF8.GetString(receivedBytes);
  38.                                 MessageBox.Show(data);
  39.  
  40.                                 byte[] returned = Encoding.UTF8.GetBytes("Klient otrzymał potwierdzenie od serwera.");
  41.                                 server.Send(returned, returned.Length, remoteIPEndPoint);
  42.  
  43.                             }
  44.  
  45.                         });
  46.  
  47.                     serverReceive.IsBackground = true;
  48.                     serverReceive.Start();
  49.  
  50.                 });
  51.  
  52.             serverThread.IsBackground = true;
  53.             serverThread.Start();
  54.  
  55.         }
  56.  
  57.         UdpClient client;
  58.         UdpClient client2;
  59.         IPEndPoint remoteIPEndPoint = new IPEndPoint(IPAddress.Any, 0);
  60.  
  61.  
  62.         private void button2_Click(object sender, EventArgs e)
  63.         {
  64.             client = new UdpClient();
  65.             IPAddress address = IPAddress.Parse("127.0.0.1");
  66.             client.Connect(address, 8008);
  67.  
  68.             Thread receiveClient = new Thread(delegate()
  69.                 {
  70.                     while(true)
  71.                     {
  72.                         byte[] rcvPacket = client.Receive(ref remoteIPEndPoint);
  73.                         string rcvData = Encoding.UTF8.GetString(rcvPacket);
  74.                         MessageBox.Show("Klient: " + rcvData);
  75.                     }
  76.  
  77.                 });
  78.  
  79.             receiveClient.IsBackground = true;
  80.             receiveClient.Start();
  81.  
  82.         }
  83.  
  84.  
  85.         private void button3_Click(object sender, EventArgs e)
  86.         {
  87.             client2 = new UdpClient();
  88.             IPAddress address = IPAddress.Parse("127.0.0.1");
  89.             client2.Connect(address, 8008);
  90.  
  91.             Thread receiveClient = new Thread(delegate()
  92.                 {
  93.                     while(true)
  94.                     {
  95.                         byte[] rcvPacket = client2.Receive(ref remoteIPEndPoint);
  96.                         string rcvData = Encoding.UTF8.GetString(rcvPacket);
  97.                         MessageBox.Show("Klient2: " + rcvData);
  98.                     }
  99.  
  100.  
  101.                 });
  102.  
  103.             receiveClient.IsBackground = true;
  104.             receiveClient.Start();
  105.         }
  106.  
  107.         private void button5_Click(object sender, EventArgs e)
  108.         {
  109.             sendMessage(client2, "Klient2 wysłał wiadomość.");
  110.  
  111.         }
  112.  
  113.         private void button4_Click(object sender, EventArgs e)
  114.         {
  115.             sendMessage(client, "Klient wysłał wiadomość.");
  116.         }
  117.         void sendMessage(UdpClient udp, string message)
  118.         {
  119.             byte[] sendBytes = Encoding.UTF8.GetBytes(message);
  120.             udp.Send(sendBytes, sendBytes.Length);
  121.         }
  122.  
  123.         private void Form1_Load(object sender, EventArgs e)
  124.         {
  125.  
  126.         }
  127.  
  128.  
  129.  
  130.     }
  131. }
  132.  
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
prog.cs(4,14): error CS0234: The type or namespace name `Data' does not exist in the namespace `System'. Are you missing an assembly reference?
prog.cs(12,24): error CS0234: The type or namespace name `Tasks' does not exist in the namespace `System.Threading'. Are you missing an assembly reference?
prog.cs(13,14): error CS0234: The type or namespace name `Windows' does not exist in the namespace `System'. Are you missing an assembly reference?
Compilation failed: 3 error(s), 0 warnings
stdout
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Standard output is empty
https://ideone.com/h3olOl
language:
C# (gmcs 5.20.1)
created:
9 years ago
visibility:
public

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