SOLVED!
w/o JS/AJAX
I created a factory to produce the corresponding Panel(including the form)
and I use a call to replaceWith() in onSelectionChanged():
[code]
@Override
protected void onSelectionChanged(final Object newSelection) {
Panel newPanel = AddItemPanel.getAddItemPanel(selected, "addArticlePanel");
//the factory call
addArticlePanel.replaceWith(newPanel);
addArticlePanel = newPanel;
}
Thanks to martin-g @ #wicket.
Regards,
Stephan
Am 11.11.2009 um 16:18 schrieb srm:
> Am 11.11.2009 um 15:59 schrieb Ernesto Reinaldo Barreiro:
>
>> If you reload the page when selecting the element, instead of using AJAX, I
>> guess the same will work because you have a selected article... I think AJAX
>> is just a detail here, maybe you can use
>>
>> protected boolean wantOnSelectionChangedNotifications()
>> {
>> return false;
>> }
>>
>> on DropDownChoice?
>>
>
>
> From my understanding, I need wantOnSelectionChangedNotifications()
> returning TRUE, otherwise onSelectionChanged() is never triggered.
> My current approach as follows. That's working but it doesn't feel right.
> To clumsy. Any ideas? (and I beg your pardon for mixing german
> with english in the code ;) )
>
> package view;
>
> ..some imports...
> public class AddArticlePage extends StorePage {
>
> private AddArticlePanel addArticlePanel;
>
> @SuppressWarnings("unchecked")
> public AddArticlePage() {
> addArticlePanel = new AddArticlePanel("addArticlePanel");
> addArticlePanel.setVisible(false);
> DropDownChoice dropDownType = new DropDownChoice("dropDownType",
> new PropertyModel(this, "selected"), Artikel.TYPELIST) {
> protected boolean wantOnSelectionChangedNotifications() {
> return true;
> }
> @Override
> protected void onSelectionChanged(final Object newSelection) {
> System.out.println("SELECTION CHANGED!");
> System.out.println("new Selection = " + (String) newSelection);
> addArticlePanel.setVisibleFields((String) newSelection);
> addArticlePanel.setVisible(true);
> }
> };
>
> Form formAdd = new Form("addArticleForm") {
> @Override
> protected void onSubmit() {
> System.out.println("Added Article...");
> }
> };
>
> add(dropDownType);
> add(addArticlePanel);
> add(formAdd);
>
> }
> }
>
>
> /***** THE PANEL CLASS ******/
> public class AddArticlePanel extends Panel {
>
> private TextField artikelNummer;
> private TextField preis;
> private TextField erscheinungsJahr;
> private TextField beschreibung;
> private TextField titel;
>
> //fields for BOOK
> private TextField isbn;
> private TextField autor;
> private TextField verlag;
>
> //fields for CD
> private TextField label;
> private TextField artist;
>
> public AddArticlePanel(String id) {
> super(id);
>
> artikelNummer = new TextField("artikelNummer", new Model());
> preis = new TextField("preis", new Model());
> erscheinungsJahr = new TextField("erscheinungsJahr", new Model());
> beschreibung = new TextField("beschreibung", new Model());
> titel = new TextField("titel", new Model());
> isbn = new TextField("isbn", new Model());
> autor = new TextField("autor", new Model());
> verlag = new TextField("verlag", new Model());
> label = new TextField("label", new Model());
> artist = new TextField("artist", new Model());
> add(artikelNummer);
> add(preis);
> add(erscheinungsJahr);
> add(beschreibung);
> add(titel);
> add(isbn);
> add(autor);
> add(verlag);
> add(label);
> add(artist);
>
> // THIS WHOLE THING WOULD HAVE TO BE DONE FOR EACH ITEM AGAIN TO
> // DISPLAY A LABEL IN FRONT OF EACH TEXTFIELD, HOLDING A DESCRIPTION
> // SOUNDS AWFULL!
>
> }
>
> //could probably be optimised
> public void setVisibleFields(String type) {
> if (type.equals("BOOK")) {
> isbn.setVisible(true);
> autor.setVisible(true);
> verlag.setVisible(true);
>
> label.setVisible(false);
> artist.setVisible(false);
> }
> else {
> isbn.setVisible(false);
> autor.setVisible(false);
> verlag.setVisible(false);
>
> label.setVisible(true);
> artist.setVisible(true);
> }
> }
>
>
> }
>
> Comments please :)
>
>
>> Best,
>>
>> Ernesto
>>
>> On Wed, Nov 11, 2009 at 3:45 PM, srm <s...@schokokeks.org> wrote:
>>
>>>
>>> Am 11.11.2009 um 15:25 schrieb Ernesto Reinaldo Barreiro:
>>>
>>>> I have used something similar to
>>> [snip]
>>> [snap]
>>>>
>>>> for such situations... I delegate creation to a factory class (so that
>>> new
>>>> products can be plugged in).
>>>>
>>>> Best,
>>>>
>>>> Ernesto
>>>>
>>>
>>>
>>> Thank you for this example.
>>> But I'm bound to not use Ajax/JavaScript...and now I'm stuck.
>>>
>>> Regards,
>>> Stephan
>>>
>>>
>>>
>>>> On Wed, Nov 11, 2009 at 2:53 PM, srm <s...@schokokeks.org> wrote:
>>>>
>>>>> How would you approach the following:
>>>>> PageA is used to insert an article. At first, the user chooses what kind
>>> of
>>>>> article to insert (DropDownChoice).
>>>>> When the User made his choice, a coresponding form should be
>>> loaded/visible
>>>>> underneath the
>>>>> DropDownChoice. That's all to be solved without JavaScript.
>>>>> My current idea is currently to add an Panel (AddArticlePanel) which
>>> holds
>>>>> all fields for any kind of article
>>>>> and make them visible depending on what the user has chosen (using
>>>>> onSelectionChanged).
>>>>> But that seems like a brute approach so I wanted to get your opinions on
>>>>> this.
>>>>>
>>>>> Further information will be happily provided.
>>>>>
>>>>> Regards,
>>>>> Stephan
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>>>>>
>>>
>>>
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>>>
>
>
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