You are viewing a plain text version of this content. The canonical link for it is here.
Posted to users@wicket.apache.org by OjO <fa...@washington.edu> on 2009/04/29 21:51:30 UTC
Re: Null model with CheckGroup
How does the Check object determine if the checkbox should be tagged as
checked?
igor.vaynberg wrote:
>
> in the example checkgroup inherits a property of the
> compoundpropertymodel as its model. i suggest you read the models wiki
> page.
>
> -igor
>
> On Fri, May 23, 2008 at 8:36 AM, seanblaes <se...@hifiit.com> wrote:
>>
>> That's how the example at
>> http://wicketstuff.org/wicket13/compref/?wicket:bookmarkablePage=%3Aorg.apache.wicket.examples.compref.CheckGroupPage
>> shows it. I added an empty ArrayList as the model, and it works now.
>> Should I send a message to the bugs list to update the examples page
>> above?
>>
>>
>> I did note that when you view the source of the example, it uses the
>> empty
>> ArrayList approach I'm using now.
>>
>>
>> igor.vaynberg wrote:
>>>
>>> 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 <se...@hifiit.com>
>>> 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.
>>>>
>>>>
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>>
>>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>
>>>
>>>
>>
>> --
>> View this message in context:
>> http://www.nabble.com/Null-model-with-CheckGroup-tp17419490p17427924.html
>> Sent from the Wicket - User mailing list archive at Nabble.com.
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
>>
>>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>
>
--
View this message in context: http://www.nabble.com/Null-model-with-CheckGroup-tp17419490p23301346.html
Sent from the Wicket - User mailing list archive at Nabble.com.
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
For additional commands, e-mail: users-help@wicket.apache.org
Re: Null model with CheckGroup
Posted by OjO <fa...@washington.edu>.
Thank you, Igor! I had trouble subscribing to the mailing list. Just noticed
your response on my Nabble Alert today. I also found out it by checking the
source code of Check.java. Here is my code sample:
List<ItemI> selectedItems =
(getSelectedList() == null
? new ArrayList()
: new ArrayList (getSelectedList()));
Form form = new MySelectItemForm ("form", selectedItems);
add(form);
final CheckGroup itemGroup = new CheckGroup ("group", selectedItems);
form.add (itemGroup);
List<ItemI> choiceList = getList();
ListView itemList = new ListView("item_list", choiceList ) {
protected void populateItem(ListItem item) {
item.add (new Check ("ckbox_item",
item.getModel(),
itemGroup));
ItemI t = (ItemI)item.getModelObject();
item.add (new Label("item_title", t.getName()));
}
};
itemGroup.add(itemList);
CheckGroupSelector selectAll =
new CheckGroupSelector ("groupselector_echan", itemGroup);
if ( choiceList.size () == selectedItems.size()) {
selectAll.add (new SimpleAttributeModifier ("checked", "checked"));
}
itemGroup.add (selectAll);
I thought the CheckGroupSelector would set checked automatically if it sees
the itemGroup has the same collection as the choiceList. But it does not.
igor.vaynberg wrote:
>
> just like with any choice component in wicket, items are checked if
> they are contained in the same collection model they would be put in
> on submit, so in your case if the collection that is the model object
> of the checkgroup contains the same value as the check's model object
> the check is checked.
>
> -igor
>
> On Wed, Apr 29, 2009 at 12:54 PM, OjO <fa...@washington.edu> wrote:
>>
>> With CheckBox, I can pass in the Boolean value. But with Check, how do I
>> let
>> it know the item should be displayed as checked initially?
>>
>> OjO wrote:
>>>
>>> How does the Check object determine if the checkbox should be tagged as
>>> checked?
>>>
>>>
>>>
>>> igor.vaynberg wrote:
>>>>
>>>> in the example checkgroup inherits a property of the
>>>> compoundpropertymodel as its model. i suggest you read the models wiki
>>>> page.
>>>>
>>>> -igor
>>>>
>>>> On Fri, May 23, 2008 at 8:36 AM, seanblaes <se...@hifiit.com>
>>>> wrote:
>>>>>
>>>>> That's how the example at
>>>>> http://wicketstuff.org/wicket13/compref/?wicket:bookmarkablePage=%3Aorg.apache.wicket.examples.compref.CheckGroupPage
>>>>> shows it. I added an empty ArrayList as the model, and it works now.
>>>>> Should I send a message to the bugs list to update the examples page
>>>>> above?
>>>>>
>>>>>
>>>>> I did note that when you view the source of the example, it uses the
>>>>> empty
>>>>> ArrayList approach I'm using now.
>>>>>
>>>>>
>>>>> igor.vaynberg wrote:
>>>>>>
>>>>>> 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 <se...@hifiit.com>
>>>>>> 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.
>>>>>>>
>>>>>>>
>>>>>>> ---------------------------------------------------------------------
>>>>>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>>>>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> ---------------------------------------------------------------------
>>>>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>>>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>> --
>>>>> View this message in context:
>>>>> http://www.nabble.com/Null-model-with-CheckGroup-tp17419490p17427924.html
>>>>> Sent from the Wicket - User mailing list archive at Nabble.com.
>>>>>
>>>>>
>>>>> ---------------------------------------------------------------------
>>>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>>>
>>>>>
>>>>
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>>
>>>>
>>>>
>>>
>>>
>>
>> --
>> View this message in context:
>> http://www.nabble.com/Null-model-with-CheckGroup-tp17419490p23301416.html
>> Sent from the Wicket - User mailing list archive at Nabble.com.
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
>>
>>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>
>
--
View this message in context: http://www.nabble.com/Null-model-with-CheckGroup-tp17419490p23336823.html
Sent from the Wicket - User mailing list archive at Nabble.com.
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
For additional commands, e-mail: users-help@wicket.apache.org
Re: Null model with CheckGroup
Posted by Igor Vaynberg <ig...@gmail.com>.
just like with any choice component in wicket, items are checked if
they are contained in the same collection model they would be put in
on submit, so in your case if the collection that is the model object
of the checkgroup contains the same value as the check's model object
the check is checked.
-igor
On Wed, Apr 29, 2009 at 12:54 PM, OjO <fa...@washington.edu> wrote:
>
> With CheckBox, I can pass in the Boolean value. But with Check, how do I let
> it know the item should be displayed as checked initially?
>
> OjO wrote:
>>
>> How does the Check object determine if the checkbox should be tagged as
>> checked?
>>
>>
>>
>> igor.vaynberg wrote:
>>>
>>> in the example checkgroup inherits a property of the
>>> compoundpropertymodel as its model. i suggest you read the models wiki
>>> page.
>>>
>>> -igor
>>>
>>> On Fri, May 23, 2008 at 8:36 AM, seanblaes <se...@hifiit.com> wrote:
>>>>
>>>> That's how the example at
>>>> http://wicketstuff.org/wicket13/compref/?wicket:bookmarkablePage=%3Aorg.apache.wicket.examples.compref.CheckGroupPage
>>>> shows it. I added an empty ArrayList as the model, and it works now.
>>>> Should I send a message to the bugs list to update the examples page
>>>> above?
>>>>
>>>>
>>>> I did note that when you view the source of the example, it uses the
>>>> empty
>>>> ArrayList approach I'm using now.
>>>>
>>>>
>>>> igor.vaynberg wrote:
>>>>>
>>>>> 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 <se...@hifiit.com>
>>>>> 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.
>>>>>>
>>>>>>
>>>>>> ---------------------------------------------------------------------
>>>>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>>>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>>>>
>>>>>>
>>>>>
>>>>> ---------------------------------------------------------------------
>>>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>>>
>>>>>
>>>>>
>>>>
>>>> --
>>>> View this message in context:
>>>> http://www.nabble.com/Null-model-with-CheckGroup-tp17419490p17427924.html
>>>> Sent from the Wicket - User mailing list archive at Nabble.com.
>>>>
>>>>
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>>
>>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>
>>>
>>>
>>
>>
>
> --
> View this message in context: http://www.nabble.com/Null-model-with-CheckGroup-tp17419490p23301416.html
> Sent from the Wicket - User mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
For additional commands, e-mail: users-help@wicket.apache.org
Re: Null model with CheckGroup
Posted by OjO <fa...@washington.edu>.
With CheckBox, I can pass in the Boolean value. But with Check, how do I let
it know the item should be displayed as checked initially?
OjO wrote:
>
> How does the Check object determine if the checkbox should be tagged as
> checked?
>
>
>
> igor.vaynberg wrote:
>>
>> in the example checkgroup inherits a property of the
>> compoundpropertymodel as its model. i suggest you read the models wiki
>> page.
>>
>> -igor
>>
>> On Fri, May 23, 2008 at 8:36 AM, seanblaes <se...@hifiit.com> wrote:
>>>
>>> That's how the example at
>>> http://wicketstuff.org/wicket13/compref/?wicket:bookmarkablePage=%3Aorg.apache.wicket.examples.compref.CheckGroupPage
>>> shows it. I added an empty ArrayList as the model, and it works now.
>>> Should I send a message to the bugs list to update the examples page
>>> above?
>>>
>>>
>>> I did note that when you view the source of the example, it uses the
>>> empty
>>> ArrayList approach I'm using now.
>>>
>>>
>>> igor.vaynberg wrote:
>>>>
>>>> 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 <se...@hifiit.com>
>>>> 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.
>>>>>
>>>>>
>>>>> ---------------------------------------------------------------------
>>>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>>>
>>>>>
>>>>
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>>
>>>>
>>>>
>>>
>>> --
>>> View this message in context:
>>> http://www.nabble.com/Null-model-with-CheckGroup-tp17419490p17427924.html
>>> Sent from the Wicket - User mailing list archive at Nabble.com.
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>
>>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
>>
>>
>>
>
>
--
View this message in context: http://www.nabble.com/Null-model-with-CheckGroup-tp17419490p23301416.html
Sent from the Wicket - User mailing list archive at Nabble.com.
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
For additional commands, e-mail: users-help@wicket.apache.org