private void handler_RequestLimitReached(object sender, TomTomRequestLimitReached e)
 {
     mainGrid.Dispatcher.Invoke(new RequestLimit(RequestLimitReached), e.Index);
 }
 private void handler_ConnectionError(object sender, TomTomRequestLimitReached e)
 {
     mainGrid.Dispatcher.Invoke(new ConError(ConnectionError), e.Index);
 }