using System;
// Declare an event class.
class MyEvent {
public event EventHandler SomeEvent; // uses EventHandler delegate
// This is called to fire SomeEvent.
public void OnSomeEvent() {
if(SomeEvent != null)
SomeEvent(this, EventArgs.Empty);
}
}
class MainClass {
static void handler(object source, EventArgs arg) {
Console.WriteLine("Event occurred");
Console.WriteLine("Source is " + source);
}
public static void Main() {
MyEvent evt = new MyEvent();
// Add handler() to the event list.
evt.SomeEvent += handler;
// Fire the event.
evt.OnSomeEvent();
}
}
Event occurred
Source is MyEvent