Event .net guidelines, C#

Event .net guidelines

//Title of this code
//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
	
	// Derive a class from EventArgs.

class MyEventArgs : EventArgs 
	{

public int EventNum;
		
	}
	// Declare a delegate type for an event.

delegate void MyEventHandler(object sender, MyEventArgs e);

// Declare a class that contains an event.

class MyEvent 
    {

static int count = 0;

public event MyEventHandler SomeEvent;

// This raises SomeEvent.

public void OnSomeEvent()
        {

MyEventArgs arg = new MyEventArgs();

if(SomeEvent != null) 
            {

arg.EventNum = count++;

SomeEvent(this, arg);

}

class X 
    {

public void Handler(object sender, MyEventArgs e)
        {

Console.WriteLine("Event " + e.EventNum +

" received by an X object.");

Console.WriteLine("Source is " + sender);

Console.WriteLine();

}

class Y 
    {

public void Handler(object sender, MyEventArgs e)
        {

Console.WriteLine("Event " + e.EventNum +

" received by a Y object.");

Console.WriteLine("Source is " + sender);

Console.WriteLine();

}

public class Program
	{
		public static void Main(string[] args)
		{

X ob1 = new X();

Y ob2 = new Y();

MyEvent evt = new MyEvent();

// Add Handler() to the event list.

evt.SomeEvent += ob1.Handler;

evt.SomeEvent += ob2.Handler;

// Raise the event.

evt.OnSomeEvent();

}
	}
}


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