// Event handler
public void HandleWhenExceedSpeed(Car source, CarExceedSpeedEventArgs e)
{
System.Console.WriteLine("{1} : You are driving at {0}. Slow down!",
source.Speed, e.WhenViolate);
}
static void Main(string[] args)
{
Car car = new Car();
HighwayPatrol highwayPolice = new HighwayPatrol();
// Wiring the event handler of the listener to the event
car.CarSpeedChanged += highwayPolice.HandleWhenExceedSpeed;
car.Speed = 200; // Raise the event
System.Threading.Thread.Sleep(1000); // Wait for 1 second
car.Speed = 300; // Raise the event again
System.Console.ReadKey();
}