static void Main(string[] args)
{
Console.WriteLine("***** Delegates as event enablers ******\n");
// First, make a Car object.
Car c1 = new Car("Slugbug", 100, 10);
// Now, tell the car which method to call when it wants to send us messages.
c1.RegisterWithCarEngine(new Car.CarEngineHandler(OnCarEngineEvent));
// This time, hold onto the delegate object, so we can unregister later.
Car.CarEngineHandler handler2 = new Car.CarEngineHandler(OnCarEngineEvent2);
c1.RegisterWithCarEngine(handler2);
// Speed up (this will trigger the events).
Console.WriteLine("***** Speeding up *****");
for (int i = 0; i < 6; i++)
{
c1.Accelerate(20);
}
Console.ReadLine();
// Unregister from the second handler.
c1.unRegisterWithCarEngine(handler2);
c1.CurrentSpeed = 30;
Console.WriteLine("***** Speeding up *****");
for (int i = 0; i < 6; i++)
{
c1.Accelerate(20);
}
Console.ReadLine();
}
