private void SaveProducer()
{
_producer.Name = Name;
_producer.Country = Country;
_producer.Id = _blc.ProducerService().GetNewId(_producer.Id);
_dialogService.CloseWindow(_guid);
}
private void SaveMotorbike()
{
_motorbike.Name = Name;
_motorbike.Producer = SelectedProducer;
_motorbike.ProductionYear = ProductionYear;
_motorbike.Transmission = SelectedTransmission;
_motorbike.Id = _blc.MotorbikeService().GetNewId(_motorbike.Id);
_dialogService.CloseWindow(_guid);
}