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Posted to users@wicket.apache.org by "Harrison, Andy" <An...@tuiski.com> on 2008/11/20 17:40:36 UTC
Problems with lists of checkboxes...
Hi...
I've been having lots of fun trying to get a list of checkboxes to
display correctly on a page. What I am attempting to do is to display a
list of checkboxes based on a list of passengers and when the checkbox
is checked, add the selected passenger to another object.
I had great fun trying to figure out why all of the checkboxes are
checked all of the time and was hoping that overriding the
onComponentTag and attempting to set checked as true/false or even
checked/unchecked based on a condition might help, but to no avail. I'm
probably missing something really simple, but need pointing in the right
direction.
CheckGroup group = new CheckGroup("group", passengers) {
@Override
protected void onSelectionChanged(final Collection
newSelection) {
Extra extra = (Extra) getParent().getModelObject();
List<Passenger> pax = extra.getExtraPassengers();
List<Passenger> selection = (List<Passenger>)
newSelection;
if (pax.containsAll(selection)) {
pax.removeAll(selection);
} else {
pax.addAll(selection);
}
}
@Override
protected boolean wantOnSelectionChangedNotifications() {
return true;
}
};
ListView people = new ListView("people", passengers) {
@Override
protected void populateItem(final ListItem item) {
final Passenger pax = (Passenger) item.getModelObject();
Check check = new Check("checkbox", item.getModel()) {
@Override
protected void onComponentTag(final ComponentTag
tag) {
super.onComponentTag(tag);
if (extra.getExtraPassengers().contains(pax)) {
tag.put("checked", "checked");
} else {
tag.put("checked", "unchecked");
}
}
};
item.add(check);
item.add(new Label("name", pax.getDefaultDetails()));
}
};
people.setReuseItems(true);
group.add(people);
extraItem.add(group);
boolean displaySelected = extra.isSelectedExtra();
group.setVisible(displaySelected);
Regards
Andrew
..........................
CarbonNeutral? office
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Re: Problems with lists of checkboxes...
Posted by Jeremy Thomerson <je...@wickettraining.com>.
Try creating your checkbox like this, with a proper boolean model:
add(new CheckBox("check", new IModel<Boolean>() {
public Boolean getObject() {
return pax.contains((Passenger) item.getModelObject());
}
public void setObject(Boolean bool) {
if (bool) {
pax.add((Passenger) item.getModelObject());
} else {
pax.remove((Passenger) item.getModelObject());
}
}
public void detach() {
// no-op
}
}));
--
Jeremy Thomerson
http://www.wickettraining.com
On Thu, Nov 20, 2008 at 10:40 AM, Harrison, Andy
<An...@tuiski.com>wrote:
> Hi...
>
>
>
> I've been having lots of fun trying to get a list of checkboxes to
> display correctly on a page. What I am attempting to do is to display a
> list of checkboxes based on a list of passengers and when the checkbox
> is checked, add the selected passenger to another object.
>
>
>
> I had great fun trying to figure out why all of the checkboxes are
> checked all of the time and was hoping that overriding the
> onComponentTag and attempting to set checked as true/false or even
> checked/unchecked based on a condition might help, but to no avail. I'm
> probably missing something really simple, but need pointing in the right
> direction.
>
>
>
>
>
> CheckGroup group = new CheckGroup("group", passengers) {
>
>
>
> @Override
>
> protected void onSelectionChanged(final Collection
> newSelection) {
>
>
>
> Extra extra = (Extra) getParent().getModelObject();
>
>
>
> List<Passenger> pax = extra.getExtraPassengers();
>
> List<Passenger> selection = (List<Passenger>)
> newSelection;
>
> if (pax.containsAll(selection)) {
>
> pax.removeAll(selection);
>
> } else {
>
> pax.addAll(selection);
>
> }
>
> }
>
>
>
> @Override
>
> protected boolean wantOnSelectionChangedNotifications() {
>
> return true;
>
> }
>
>
>
> };
>
>
>
>
>
> ListView people = new ListView("people", passengers) {
>
>
>
> @Override
>
> protected void populateItem(final ListItem item) {
>
> final Passenger pax = (Passenger) item.getModelObject();
>
> Check check = new Check("checkbox", item.getModel()) {
>
>
>
> @Override
>
> protected void onComponentTag(final ComponentTag
> tag) {
>
> super.onComponentTag(tag);
>
> if (extra.getExtraPassengers().contains(pax)) {
>
> tag.put("checked", "checked");
>
> } else {
>
> tag.put("checked", "unchecked");
>
> }
>
> }
>
>
>
> };
>
> item.add(check);
>
> item.add(new Label("name", pax.getDefaultDetails()));
>
> }
>
> };
>
> people.setReuseItems(true);
>
> group.add(people);
>
>
>
> extraItem.add(group);
>
>
>
> boolean displaySelected = extra.isSelectedExtra();
>
>
>
> group.setVisible(displaySelected);
>
>
>
> Regards
>
>
>
> Andrew
>
>
>
>
>
> ..........................
>
> CarbonNeutral? office
>
> Thomson.co.uk <http://thomson.co.uk/> for Holidays, Flights, Hotels,
> customer reviews and over 2000 videos. Find us at www.thomson.co.uk, Sky
> 637 or on your high street.
>
> CONFIDENTIALITY NOTICE & DISCLAIMER
>
> This message, together with any attachments, is for the confidential and
> exclusive use of the intended addresses(s). If you receive it in error,
> please delete the message and its attachments from your system immediately
> and notify us by return e-mail. Do not disclose copy, circulate or use any
> information contained in this e-mail.
> (1) The content of this e-mail is to be read subject to our terms of
> business, as applicable.
> (2) E-mail may be intercepted or affected by viruses and we accept no
> responsibility for any interception or liability for any form of viruses
> introduced with this e-mail.
> (3) The sender shall remain solely accountable for any statements,
> representations or opinions that are clearly his or her own and not made in
> the course of employment.
> (4) For risk, protection and security purposes, we may monitor e-mails and
> take appropriate action.
> Registered Office: TUI Travel House, Crawley Business Quarter, Fleming Way,
> Crawley, West Sussex RH10 9QL
>
> TUI Travel PLC, Registered in England and Wales (Number 6072876)
> TUI Northern Europe Limited, Registered in England and Wales (Number
> 3490138)
> TUI UK Limited, Registered in England and Wales (Number 2830117) ; VAT
> Number: 233 3687 62
> Thomsonfly Limited, Registered in England and Wales (Number 444359); VAT
> Number: 490 2120 79
>
> Telephone: +44 (0)24 7628 2828 | Fax: +44 (0)24 7628 2844 | IT Helpdesk:
> +44 (0)20 7383 1555 | IT E-mail: Postmaster@thomson.co.uk
>