ReadOnly field in FieldGroup

I just want setReadOnly TextField (for example) in FieldGroup, but the TexField not assume the property read only.
My code:
        form = new FormLayout();
        fieldGroup = new BeanFieldGroup(User.class);
        txtName = new TextField("Nome");
        form.addComponent(txtName);
        fieldGroup.bind(txtName, User.PROPERTY_NAME);
        fieldGroup.setBuffered(true);
        txtName.setReadOnly(true);

Someone help me, please?

Hi,
I created the following minimal Vaadin UI to try to reproduce the problem you are experiencing:

@Theme("mytheme")
@Widgetset("com.example.myapplication.MyAppWidgetset")
public class MyUI extends UI {
    
    private FormLayout form;
    private BeanFieldGroup<User> fieldGroup;
    private TextField txtName;

    public class User {

        static final String PROPERTY_NAME = "name";
        
        String name;
    }

    @Override
    protected void init(VaadinRequest vaadinRequest) {
        form = new FormLayout();
        fieldGroup = new BeanFieldGroup<User>(User.class);
        txtName = new TextField("Name");
        form.addComponent(txtName);
        fieldGroup.bind(txtName, User.PROPERTY_NAME);
        fieldGroup.setBuffered(true);
        txtName.setReadOnly(true);
        
        setContent(form);
    }

    @WebServlet(urlPatterns = "/*", name = "MyUIServlet", asyncSupported = true)
    @VaadinServletConfiguration(ui = MyUI.class, productionMode = false)
    public static class MyUIServlet extends VaadinServlet {
    }
}

But I could not reproduce the problem. The TextField is in read only mode in the UI. Maybe I misunderstood your problem?
 

Jonni Nakari: Hi,
I created the following minimal Vaadin UI to try to reproduce the problem you are experiencing:

@Theme("mytheme")
@Widgetset("com.example.myapplication.MyAppWidgetset")
public class MyUI extends UI {
    
    private FormLayout form;
    private BeanFieldGroup<User> fieldGroup;
    private TextField txtName;

    public class User {

        static final String PROPERTY_NAME = "name";
        
        String name;
    }

    @Override
    protected void init(VaadinRequest vaadinRequest) {
        form = new FormLayout();
        fieldGroup = new BeanFieldGroup<User>(User.class);
        txtName = new TextField("Name");
        form.addComponent(txtName);
        fieldGroup.bind(txtName, User.PROPERTY_NAME);
        fieldGroup.setBuffered(true);
        txtName.setReadOnly(true);
        
        setContent(form);
    }

    @WebServlet(urlPatterns = "/*", name = "MyUIServlet", asyncSupported = true)
    @VaadinServletConfiguration(ui = MyUI.class, productionMode = false)
    public static class MyUIServlet extends VaadinServlet {
    }
}

But I could not reproduce the problem. The TextField is in read only mode in the UI. Maybe I misunderstood your problem?

 

Jonni, You are right. My mistake.
I had a fieldgroup.setItemDataSource after instanciate my object with new BeanFieldGroup<User>(User.class);

Thanks for the reply. Sorry for my silliness.