Delegates & Events in Hindi

using System;

namespace DelegatesAndEventsExample

{

    // Step 1: Define a delegate

    public delegate void NotifyHandler(string message);

    // Publisher class

    public class Publisher

    {

        // Step 2: Declare an event using the delegate

        public event NotifyHandler Notify;

        public void TriggerEvent(string message)

        {

            // Step 3: Trigger the event

            if (Notify != null)

            {

                Notify(message); // Notify all subscribers

            }

        }

    }

    // Subscriber class

    public class Subscriber

    {

        public void OnNotifyReceived(string message)

        {

            Console.WriteLine("Subscriber received message: " + message);

        }

    }

    class Program

    {

        static void Main(string[] args)

        {

            // Create publisher and subscriber objects

            Publisher publisher = new Publisher();

            Subscriber subscriber = new Subscriber();

            // Step 4: Subscribe to the event

            publisher.Notify += subscriber.OnNotifyReceived;

            // Trigger the event

            publisher.TriggerEvent("Hello, this is a test event!");

            Console.ReadLine();

        }

    }

}

Subscriber received message: Hello, this is a test event!