RemoveHandler *.SolutionExpired, AddressOf DefObj_SolutionExpired

public void Form_Load(object sender, EventArgs e)
{
  button1.Click += new EventHandler(button1_Click);
  button1.Click += new EventHandler(button1_Click);
  button2.Click += new EventHandler(button2_Click);
  TestEvent += new EventHandler(Form_TestEvent);
}
event EventHandler TestEvent;
void OnTestEvent(EventArgs e)
{
  if (TestEvent != null)
     TestEvent(this, e);
}
void Form_TestEvent(object sender, EventArgs e)
{
  MessageBox.Show("TestEvent fired");
}
void button2_Click(object sender, EventArgs e)
{
  Delegate d = TestEvent as Delegate;
  TestEvent = Delegate.RemoveAll(d, d) as EventHandler;
}
void button1_Click(object sender, EventArgs e)
{
  OnTestEvent(EventArgs.Empty);
}

button1.Click = Delegate.RemoveAll(d, d) as EventHandler;

public class TheAnswer
{
    public event EventHandler MyEvent = delegate { };

    public void RemoveFromMyEvent(string methodName)
    {
        foreach (var handler in MyEvent.GetInvocationList())
        {
            if (handler.Method.Name == methodName)
            {
                MyEvent -= (EventHandler)handler;
            }
        }
    }
}