Question

I have a spinner where the user must select a year. When the page is loaded the default value for the spinner is the minValue on the screen, but in the backing-bean the value is null.

I need to render some info when the page is first loaded taking the default value (minValue) of the spinner.

How to do that?

Cheers

Answer 1

Something like that

Since that you know that when the page is first loaded spinnerValue is null , you can render
h:panelGroup (for example) based on that condition

<h:panelGroup id="renderMe" rendered="#{myBean.spinnerValue eq null}">
    some text...
</h:pamelGroup>

?