private void PlantsButton_PointerPressed(object sender, PointerRoutedEventArgs e)
{
ProducerContentFrame.Navigate(typeof(ProducerPlantsPage), _company);
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
_company = e.Parameter as Company;
ProducerContentFrame.Navigate(typeof(ProducerHomePage), _company);
}