Form with CustomField

Vaadin 6 / 7 / 8 Framework UI
1

Hello all,

I am very new to Vaadin and am currently evaluating it. I have created a CustomField component using the CustomField extension and when I create the component on the form I pass an event handler object to it which implements the Button.ClickListener interface. The custom field is a search field with a button that triggers the filling of several form fields. However, for the life of me, I cannot figure out how to get a handle back to the form from the CustomField component. I know I can keep iterating back through the parents but I want to make the implementation as generic as possible.

What am I missing here? Keep in mind, I am very new to the framework and maybe what I am doing is completely backwards anyway. Basically, I am working on a vehicle registration screen and want the user to enter a serial number and then I go and look up the details of that serial number for our backend system. That is the jist of it.

I have attached a screenshot below of what I have done thus far.

Any input would be seriously appreciated!

Thanks.
Curtis
11608.jpg

2

The easiest solution is to pass outside Form instance to CustomField constructor and save it in some field :wink: Am I right?

3

Thanks, guess I was trying to make this more difficult that it needed to be.

Curtis

4

Yes, the FieldFactory you are using is probably specific to the form anyway so I would pass a reference to the Form in it - either as a Form or some subclass of Form or interface that gives you a more convenient API for filling the fields you are interested in.