CheckGroup group = new CheckGroup("merchantCheckboxGroup", **model**);
you are never setting the model you are passing in.
-igor
On Fri, May 23, 2008 at 12:09 AM, seanblaes <[EMAIL PROTECTED]> wrote:
>
> Hello all, I'm beating my head on the wall and not really sure what I'm doing
> wrong... :(
>
> I am attempting to use a CheckGroup to contain several choices - maybe it's
> even the wrong way to go about it. I followed the example on the Wicket
> webpage, but it's not working for me.
>
> Here's my HTML:
>
> <input type="checkbox" name="filter_by_merchant" id="filter_by_merchant"
> wicket:id="filterByMerchantCheckbox" value="1" onchange="var
> l=$('optional_filter_by_merchant'); if (this.checked){l.show()} else
> {l.hide()}"/>
> <label for="filter_by_merchant">Merchant</label>
>
> <ul id="optional_filter_by_merchant" class="inline optional-indent">
> <li wicket:id="merchants">
> <input type="checkbox" name="filter_by_merchant_rich_clicks"
> id="filter_by_merchant_rich_clicks" wicket:id="merchantCheckboxComponent" />
> <label for="filter_by_merchant_rich_clicks"
> wicket:id="merchantCheckboxLabel">Rich Clicks</label>
> </li>
> </ul>
>
>
>
> And I have a method to populate this section:
>
> private CheckGroup createMerchantFilterMerchantsCheckboxes(Model model) {
> CheckGroup group = new CheckGroup("merchantCheckboxGroup");
> ListView merchants = new ListView("merchants",
> MerchantOption.loadOptions()) {
> private static final long serialVersionUID = 1L;
>
> protected void populateItem(ListItem item) {
> item.add(new Check("merchantCheckboxComponent"));
> item.add(new Label("merchantCheckboxLabel", new
> PropertyModel(item.getModel(), "value")));
> }
> };
> group.add(merchants);
>
> return group;
> }
>
>
> When I call this method from my page class, it's pretty simple:
>
> ReportTypeOption def = new ReportTypeOption();
> Model model = new Model(def);
> setModel(model);
> Form form = new Form("reportForm");
> add(form);
> form.add(createMerchantFilterMerchantsCheckboxes(model));
>
>
> But, every time I hit the page, it throws
> "org.apache.wicket.WicketRuntimeException: CheckGroup
> [0:reportForm:merchantCheckboxGroup] contains a null model object, must be
> an object of type java.util.Collection".
>
> From what I can tell, this code is exactly like what's on the demo page.
> Further, I've tried reading all the docs I can find and have even tried
> stepping through the code. But, I'm not getting anywhere. Does anybody
> have any ideas on how to get that model populated? It's complaining that
> the CheckGroup doesn't have a model associated, not the Check, and indeed
> it's not initialized with a model. Should it be? Which one?
> --
> View this message in context:
> http://www.nabble.com/Null-model-with-CheckGroup-tp17419490p17419490.html
> Sent from the Wicket - User mailing list archive at Nabble.com.
>
>
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