im thinking it might be too late at that point to register the
messages because the feedback panel might have already rendered...
perhaps instead of using a loadable detachable model you do something like this:
class mypage {
private List result;
onbeforerender() {
try {
result=populatelist();
} catch (exception e) {
error("foo");
}
super.onbeforerender();
}
ondetach() { result=null; super.ondetach(); }
.. add(new listview("foo", new propertymodel(this, "result"));
}
-igor
On Wed, Mar 19, 2008 at 2:04 PM, Matthew Young <[EMAIL PROTECTED]> wrote:
> I register an error to the page in the model but the feedback message
> doesn't show in FeedbackPanel. Only the error message register in
> onSubmit() event handler shows. Please have a look. Thanks!
>
> HomePage.html:
>
> <html>
> <head></head>
> <span wicket:id="message">message will be here</span>
> <form wicket:id="form">
> <input type="text" wicket:id="word"/>
> <input type="submit" value="Enter" wicket:id="submitButton"/>
> </form>
> <span wicket:id="feedback">FEEDBACK</span>
> </html>
>
>
> HomePage.java
>
> import ...
>
> public class HomePage extends WebPage { private static final long
> serialVersionUID = 1L;
>
> private String word;
>
> public HomePage(final PageParameters parameters) {
>
> add(new
> FeedbackPanel("feedback").setOutputMarkupPlaceholderTag(true));
> // if the word 'blowup' is entered, this model register a error
> message to the page
> IModel model = new Model() { private static final long
> serialVersionUID = 1L;
> @Override public Object getObject() {
> if (word != null && word.equals("blowup")) {
> word = "-b-l-o-w-u-p-";
> HomePage.this.fatal("This message is from model.");
> return "BAD THING HAPPENED IN MODEL";
> } else {
> return "The word is: \"" + (word == null ? " n u l l " :
> word) + "\"";
> }
> }
> };
> add(new Label("message", model).setOutputMarkupId(true));
> Form form = new Form("form", new CompoundPropertyModel(this));
> add(form);
> form.add(new TextField("word").setRequired(true));
>
> AjaxFallbackButton submitButton = new
> AjaxFallbackButton("submitButton", form) {
> private static final long serialVersionUID = 1L;
> @Override protected void onSubmit(AjaxRequestTarget target, Form
> f) {
> if (word != null && word.equals("blowup")) {
> HomePage.this.error("This message is from onSubmit.
> There should also be a message from model");
> }
> if (target != null) {
> target.addComponent(HomePage.this.get("feedback"));
> target.addComponent(HomePage.this.get("message"));
> }
> }
>
> @Override protected void onError(AjaxRequestTarget target, Form
> f) {
> target.addComponent(HomePage.this.get("feedback"));
> // show updated error feedback
> }
> };
> form.add(submitButton);
> }
> }
>
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