//! public event Action<NewMailEventArgs> NewMail;
//! Step #3: Define a method responsible for raising the event
//! to notify registered objects that the event has occurred
//! If this class is sealed, make this method private and nonvirtual
protected virtual void OnNewMailReceived(NewMailEventArgs e)
{
// Copy a reference to the delegate field
// now into a temporary field for thread safety
Volatile.Read(ref NewMailReceived)
?.Invoke(this, e);
}
//! Step #4: Define a method that translates the
//! input into the desired event
public void SimulateNewMail(String from, String to, String subject)
{
// Construct an object to hold the information we wish
// to pass to the receivers of our notification
var e = new NewMailEventArgs(from, to, subject);
// Call our virtual method notifying our object that the event
// occurred. If no type overrides this method, our object will
// notify all the objects that registered interest in the event
OnNewMailReceived(e);
}
