//funkcja nadzorujaca wywolywanie handlerow eventu
public static void RiseEvent()
{
Delegate[] inv_list = myEvent.GetInvocationList();
if (inv_list.Length == 0)
return;
for (int i = 0; i < inv_list.Length; i++)
{
CancellableEventArgs cea = new CancellableEventArgs();
inv_list[i].Method.Invoke(null /*this*/, new object[] { cea });
if (cea.CancelEvent)
return;
}
}
static void Main(string[] args)
{
//assign handlers to event
myEvent += eventhandler1;
myEvent += eventhandler2;
//rise event in usual way
Console.WriteLine("normal rise");
CancellableEventArgs cea = new CancellableEventArgs();
myEvent(cea);
//rise event through RiseEvent method
Console.WriteLine("controlled rise");
RiseEvent();
Console.ReadKey(true);
}
public static void eventhandler2(CancellableEventArgs cea)
{
Console.WriteLine("eventhandler2");
}
public static void eventhandler1(CancellableEventArgs cea)
{
Console.WriteLine("eventhandler1");
cea.CancelEvent = true;
}