Thanks a lot, now it works.
It seams i get used to look closer to the code I write.
[Off Topic]
Nice articles in the JavaMagazin ...! ;)
-------- Original-Nachricht --------
Datum: Wed, 15 Aug 2007 14:01:48 +0200
Von: "Matthias Wessendorf" <[EMAIL PROTECTED]>
An: [EMAIL PROTECTED]
Betreff: Re: [Trinidad] SelectManyShuttle NullPointerException and Understanding
>
> [...]
>
> ..............
> your shuttle isn't included in a
> form
>
> <tr:form>
> <tr:selectManyShuttle leadingHeader="Not Selected"
> trailingHeader="Selected" value="#{detailsBean.selected}">
> <f:selectItems value="#{detailsBean.all}" />
> </tr:selectManyShuttle>
> </tr:form>
>
> that's the NPE.
>
> Yes, the usage is like that.
> <f:selectItems /> is for "the available items"
> and the value for the "selected" meaning, what goes to your bean.
>
> That said,
> when the List already contains some of these available values, they
> show up on the right side, when rendering:
>
> faces page:
> <tr:...Shuttle ... value="#{bean.manyInitialValues}">
>
> <tr:selectItem label="coffee" value="bean" shortDesc="Coffee from Kona"/>
> <tr:selectItem label="tea" value="leaf" shortDesc="Tea from China"/>
> <tr:selectItem label="orange juice" value="orange"/>
> <tr:selectItem label="milk" value="moo"/>
> </...shuttle>
>
> Java:
> private List _manyInitialValues = new ArrayList();
> //plus accessors
>
> adding the already available values:
> _manyInitialValues.add("bean");
> _manyInitialValues.add("leaf");
> _manyInitialValues.add("orange");
> _manyInitialValues.add("moo");
>
>
> HTH,
> Matthias
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