Question

If I have an event whose handler returns a bool, what happens if I attach multiple events??

see this example

public class MyClass
{
 public delegate bool MyEventHandler(object sender, EventArgs e);
 public event MyEventHandler Submit;

 public void DoSubmissions()
 {
  if (Submit != null && Submit(this, null))
  {
   Console.Write("HOORAY");
  }
 }
}

so in my example, the handler returns true on a successful submission. but i assign two handlers to the event…what happens? the first handler’s return is used? the 2nd? neither? both?

Answer 1

the return value of the last event to be registered is used.