I have a wicket Form inside a page, declared like this:
protected void onBeforeRender() {
Form<Void> frm = new Form<Void>("frm") {
private static final long serialVersionUID = 1L;
@Override
protected void onSubmit() {
super.onSubmit();
doSomething();
}
};
//other stuff...
addOrReplace(frm);
}
doSomething is a method in the page itself. Inside that method I do:
private void doSomething(){
//stuff...
addOrReplace(new Label("labelID", "Some text"));
}
The problem is that the call to addOrReplace does not work. I don't see the text added to the page. It only shows up if I refresh.
How can I make calls to addOrReplace work from inside a onSubmit() callback?
Sounds like you're working with AjaxButtons. You'll have to update the component or any of its parents to make the change visible in the browser:
ajaxRequestTarget.add(frm);
Remember to call #setOutputMarkupId(true) on the component you want to update via Ajax:
frm.setOutputMarkupId(true);
addOrReplace(frm);
To get hold of the AjaxRequestTarget you could override AjaxButton#onSubmit(AjaxRequestTarget, Form) and call doSomething from there - passing the AjaxRequestTarget to any method which has to update something.
Alternatively you can always call #getRequestCycle().find(AjaxRequestTarget.class) to get the current AjaxRequestTarget.
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