using System;
using System.Collections.Generic;
using System.Text;

namespace delegate_function
{

    class mydelegates
    {
        public delegate void DAM(string str);
        // delegates first or constructor first
        // for the class constructor will be the first one to evoked
        public mydelegates() { Console.WriteLine("Constructor evoked"); }
        ~mydelegates() { Console.WriteLine("Destructor evoked"); }
        //create a method with delegate 
        public void process_request(DAM input)
        {
            
            if (input !=null)
            {
                input("Checked in Manas ");
                Console.WriteLine(" First Process done : ");
            }

            if (input != null)
            {
                
                DateTime showtime = DateTime.Now;
                input("Today is ");
                Console.WriteLine(" Second Process done  { 0:m } : " +   showtime );
            }

        }
        public static void call_process(string s)
        {
            if (s == "Manas")
            {
                Console.WriteLine(" You have admin right : " + s);
            }
            else
            {
                Console.WriteLine(" Thanks for visiting " + s);
            }
        }
    }
    class test
    {

        static void admin(string ns) { Console.WriteLine(ns); }

        static void Main(string[] args)
        {

            // #2 implement a delegate with new key word just line a class
            //what is different?
            //a class holds a delegate/pointer to a method encapsulated
            //stay idle till called by a method in that external class.
            //since it is static method, you need to call like this 
            //(mydelegates.call_process);

            mydelegates myd = new mydelegates();
            mydelegates.DAM d_a_m = new mydelegates.DAM(mydelegates.call_process);
            mydelegates.DAM dd = new mydelegates.DAM(admin);
            Console.Write(" Admin's call : ");
            myd.process_request(admin);
            Console.Write(" Enter something : ");
            string str = Console.ReadLine();
            // #3 invoke a call through a delegate object
            d_a_m(str);
           
            Console.Write(" Hit Enter to Quit : ");
            Console.ReadLine();


        }
    }
}

 

    

Now as the line was processed, you would see the out put