Great! that's what I want, thanks so much and sorry for my stupid questions
:)
Eelco Hillenius wrote:
>
>> Hi experts,
>>
>> I want to implement a wizard, user need to input some data, I can do it
>> with
>> a single page using form, but I don't know how to do it in wizard, I put
>> a
>> couple of input textfield etc. then I get a error:
>>
>> java.lang.IllegalStateException: Attempt to set model object on null
>> model
>> of component: wizard:form:view:expectedNumberOfBoxes
>>
>> Note: expectedNumberOfBoxes is the first textfield I declared in the java
>> class, after googling a few hours(not too much information) I think I
>> need
>> to setup a 'model'? but I probably need more details how... my code is
>> like:
>>
>> public class DeliveryDetails extends WizardStep {
>>
>>
>> public DeliveryDetails(Delivery delivery, String title, String
>> content){
>> super(title, content);
>>
>> RequiredTextField expectedNumberOfBoxesTextField = new
>> RequiredTextField("expectedNumberOfBoxes", Integer.class);
>> add(expectedNumberOfBoxesTextField);
>>
>> RequiredTextField receivedNumberOfBoxesTextField = new
>> RequiredTextField("receivedNumberOfBoxes", Integer.class);
>> add(receivedNumberOfBoxesTextField);
>>
>> }
>
> Yep, you need to work with models. For instance:
>
> RequiredTextField receivedNumberOfBoxesTextField = new
> RequiredTextField("receivedNumberOfBoxes", Integer.class, new
> PropertyModel(delivery, "receivedNumberOfBoxes"));
> add(receivedNumberOfBoxesTextField);
>
> or:
>
> setModel(new CompoundPropertyModel(delivery));
> RequiredTextField receivedNumberOfBoxesTextField = new
> RequiredTextField("receivedNumberOfBoxes", Integer.class);
> add(receivedNumberOfBoxesTextField);
>
>
> Eelco
>
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