UDP Through C#

Hello, in this article I am going to show you how we can implement UDP through C#. So, UDP stands for User Datagram Protocol and it is a connectionless protocol. It uses datagrams instead of streams. It is an alternative Protocol to Transmission Control Protocol (TCP).

Implementation of UDP using C#,

// Server-Side Implementation Of UDP using c#:

using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Configuration;
  
class OfficeUDPServer
{
    public static void Main()
    {
        UdpClient udpc = new UdpClient(7878);
        Console.WriteLine("Server Started and servicing on port no. 7878");
        IPEndPoint ep = null;
        while (true){
           
            byte[] receivedData = udpc.Receive(ref ep);
            
            string studentName = Encoding.ASCII.GetString(receivedData);
            
            string msg = ConfigurationSettings.AppSettings[OfficeName];
            if (msg == null) msg = "No such Office available for conversation";
            byte[] sdata = Encoding.ASCII.GetBytes(msg);
            udpc.Send(sdata, sdata.Length, ep);
        }
    }
}
  
// Client-Side Implementation Of UDP using c#:

using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
  
class OfficeUDPClient
{
    public static void Main(string[] args)
    {
        UdpClient udpc = new UdpClient("PC-NAME", 7878);
        IPEndPoint ep = null;
        while (true)
        {
            Console.Write("Enter Your Office Name: ");
            string studentName = Console.ReadLine();
              
            
          // Check weather Office entered name to start conversation
              if (OfficeName == ""){
              Console.Write("You did not enter your name. Closing...");
              break;
            }
              // Data to send
            byte[] msg = Encoding.ASCII.GetBytes(OfficeName);
            udpc.Send(msg, msg.Length);
            
          // received Data
            byte[] rdata = udpc.Receive(ref ep);
            string bp = Encoding.ASCII.GetString(rdata);
            Console.WriteLine(bp);
        }
    }
}

It is very useful for servers answering small queries for a large number of clients. Hope it will help you.

Thanks.