Subscribing for events using lambda expressions

_HandleEventWithLambdaExpression.md

notes here

EventClassWithoutEvent.cs

public class EventClassWithoutEvent 
{ 
  public Action OnChange { get; set; } 
  public void Raise() 
  { 
    if (OnChange != null) 
    { 
      OnChange(); 
    } 
  } 
} 

Program.cs

public partial class Program 
{ 
  private static void CreateAndRaiseEvent() 
  { 
    EventClassWithoutEvent ev = new EventClassWithoutEvent(); 
    ev.OnChange += () => 
      Console.WriteLine("1st: Event raised"); 
    ev.OnChange += () => 
      Console.WriteLine("2nd: Event raised"); 
      
    ev.Raise(); 
  } 
}