// Invoke the Change event
public virtual void OnChange(ChangeEventArgs e)
{
if (Change != null)
{
Change(this, e);
}
}
public void Update(object sender, ChangeEventArgs e)
{
Console.WriteLine("Notified {0} of {1}'s " +
"change to {2:C}", Name, e.Symbol, e.Price);
}
public void Update(AirlineSchedule sender, ChangeEventArgs e)
{
Console.WriteLine(
"{0} Air Traffic Control Notified:\n {1}'s flight 497 from {2} " +
"to {3} new deprture time: {4:hh:mmtt}",
Name,
e.Airline,
e.DeparturnAirport,
e.ArrivalAirport,
e.DepartureDateTime);
Console.WriteLine("---------");
}