Much thanks... works like a charm.
igor.vaynberg wrote:
>
> class InverseBooleanModel implements imodel<boolean>
> private final imodel<boolean> delegate;
>
> public inversebooleanmodel(imodel<boolean>delegate) {
> this.delegate=delegate; }
> public boolean getobject() {
> return !delegate;
> }
> public void setobject(boolean o) {
> delegate.setobject(!o);
> }
> public void detach() {
> delegate.detach();
> }
> }
>
> add(new checkbox("cb", new inversebooleanmodel(model)));
>
> -igor
>
> On Fri, Apr 24, 2009 at 8:11 AM, Ryan LaHue <[email protected]>
> wrote:
>> I'm scratching my head trying to figure out the best way to reverse the
>> behavior of a checkbox, i.e. display an unchecked box when the model
>> behind
>> is true, and a checked box when the model behind is false. I don't want
>> to
>> negate all my domain objects' getters/setters to accomodate this.
>>
>> I was going to override the CheckBox.getConverter class to point to an
>> extension of CheckBoxConverter with an overridden convertToObject method
>> and
>> simply reverse the:
>> if ("on".equals(value) || "true".equals(value))
>> {
>> return Boolean.TRUE;
>> }
>> else
>> {
>> return Boolean.FALSE;
>> }
>>
>> Unfortunately the CheckBox.getConverter method is marked final, so this
>> is
>> not a possibility. I could override the onComponentTag method but I do
>> not
>> think it would be a good idea since there is a lot going on in there.
>>
>> Alternatively if there was a simple way to negate the value of the
>> setter/getter in a PropertyModel I think that would do the trick, i.e.
>> new CheckBox("checkbox", new PropertyModel(domainObject, "!blue"));
>>
>> Any suggestions?
>>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [email protected]
> For additional commands, e-mail: [email protected]
>
>
>
--
View this message in context:
http://www.nabble.com/Reversing-checkbox-behavior-or-negating-a-property-model-expression-tp23218428p23223605.html
Sent from the Wicket - User mailing list archive at Nabble.com.
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
