On 4/11/07, Jason Roelofs <[EMAIL PROTECTED]> wrote:
> How do you do this? I have a form with a few fields that onSubmit I want to
> complete redo the page. I know it's not happening by default because there's
> a generated string that doesn't change when it's supposed to.
You probably show the string as follows?
add(new Label("text", "My " + generated + " string"));
or
add(new Label("text", myGenerator.getGeneratedString());
This creates a static binding between the generated string *at
construction time* and the label. What you need to do is to evaluate
the string generation 'lazily', or at render time.
The constructor is only called once for a page, so the static strings
will only be generated once.
The solution for your problem can be anything from using PropertyModel
to creating an inline, anonymous subclass of AbstractReadOnlyModel
like:
add(new Label("text", new AbstractReadOnlyModel() {
public Object getObject() {
return generator.getGeneratedText();
}));
Be sure to read up on models at this page [1].
Martijn
[1] http://cwiki.apache.org/WICKET/working-with-wicket-models.html
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