STARIKOVS

public delegate bool MyEventHandler(object sender /* additional params */);
public event MyEventHandler MyEvent;
 
public void MyMethod()
{
    if (MyEvent != null && MyEvent(this))
    {
        /* TODO: do something */
    }
}
 
public void MyBind()
{
    MyEvent += new MyHandler(this);
}
 
private bool MyHandler(object sender)
{
    return true;
}