remove events

RemoveEvent(_timer, "Elapsed", "onIntervalElapsed");

private static void WriteMessage(string message, params object[] args)
{
    Console.SetCursorPosition(0, Math.Min(Console.BufferHeight - 1, Console.CursorTop + (Console.CursorLeft == 0 ? 0 : 1)));
    Console.WriteLine(message, args);
}

private const BindingFlags AllBindingFlags =
    BindingFlags.IgnoreCase | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static;

private static void RemoveEvent<T>(T item, string eventName, string fieldName)
{
    var type = typeof(T);
    var evnt = type.GetEvent(eventName, AllBindingFlags);
    FieldInfo field = type.GetField(fieldName, AllBindingFlags);

    if (evnt == null || field == null) // you've mistyped the event and field name.
        return;
    Delegate dele = field.GetValue(item) as Delegate;

    if (dele == null)  // no attached delegates.
        return;
    evnt.RemoveEventHandler(item, dele);
}