Funny. This works only if:
a) the listView is embedded in a Form component. (I would think it can
be independent)
b) the listView is not empty to begin with. If it is empty to begin
with, the new elements will not appear. If it is populated with 1 item
in the beginning, adding items will work fine.
So.. am I still doing something wrong?
Code is trivial:
public class MyPage extends WebPage {
public MyPage() {
Form f = new MyForm();
listViewElements = new LinkedList();
listViewElements.add(new CustomElement()); // If I add a dummy
initial element, the added elements work fine. Otherwise not
ListView l = new ListVIew(.., new PropertyModel(this, listViewElements));
f.add(l); // Otherwise it does not work at all without setting the
form as its parent; strange
}
class MyForm() {
onSubmit() {
listViewElements.add(new CustomElement());
info("Successful.");
}
}
}
2008/2/27, Igor Vaynberg <[EMAIL PROTECTED]>:
> try
>
> ListView l = new ListVIew(.., new propertymodel(this, "listViewElements"));
>
> -igor
>
>
> On Tue, Feb 26, 2008 at 9:41 PM, Martin Makundi
>
> <[EMAIL PROTECTED]> wrote:
> > > your listview model is probably caching the old list, and
> > > thus when it redraws you dont see the new items. paste your code and
> > > we can help you more.
> >
> > This is exactly what is happening. The listView is populated at the
> > Page constructor. If the page is reloaded after onSubmit, the
> > constructor is not called again because the page is already
> > instantiated. Code is trivial:
> >
> > public class MyPage extends WebPage {
> >
> > public MyPage() {
> > Form f = new MyForm();
> > listViewElements = new LinkedList();
> > ListView l = new ListVIew(.., listViewElements);
> > }
> >
> > class MyForm() {
> > onSubmit() {
> > listViewElements.add(new CustomElement());
> > info("Successful.");
> > // here I would like to acknowledge that the listView
> > // should be repainted to include the new element; otherwise
> > the old listView is shown
> >
> >
> > }
> > }
> > }
> >
> > >
> > > -igor
> > >
> > >
> > >
> > > On Tue, Feb 26, 2008 at 8:50 PM, Martin Makundi
> > > <[EMAIL PROTECTED]> wrote:
> > > > Hi!
> > > >
> > > > Is it possible to refresh a listView during a form onSubmit event,
> > > > without using ajax? Is there any way (apart from ajax) to do it than
> > > > by explicitly reloading the page?
> > > >
> > > > If I reload the page I must store the feedback messages elsewhere
> > > > (session-scope feedback messages) and re-initialize all the
> components
> > > > "manually". Or is there maybe something like listView.repaint() or
> > > > page.refresh() which can be called from Form.onSubmit()?
> > > >
> > > > This is what I have:
> > > >
> > > > <feedback messages here/>
> > > > Item: [ ] (textfield) ["Add"
> Submit-button]
> > > >
> > > > <table>
> > > > <tr>previously added item</tr>
> > > > <tr>previously added item</tr>
> > > > <tr>previously added item</tr>
> > > > </table>
> > > >
> > > > This is what I want:
> > > >
> > > > When the "Add" -button is pressed, the form.onSubmit() is called
> and a
> > > > new element is added into the list of elements (used as the source
> for
> > > > the listView pupulating the table). I would then like to "reload"
> the
> > > > page and show a success message in the feedback panel.
> > > >
> > > > I know this can be maneuvered by actually reloading the page and
> using
> > > > session-scope feedback messages, but is there some "soft reload",
> > > > which sort-of shortcuts using session-scope feedback messages?
> > > >
> > > > Technically the difference is small, but conceptually I find "soft
> > > > refresh" more intuitive.
> > > >
> > > > **
> > > > Martin
> > > >
> > >
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