here is the version that stores the id in the model instead...maybe at
some point it can make its way into extensions or core
import java.util.List;
import org.apache.wicket.markup.html.form.DropDownChoice;
import org.apache.wicket.markup.html.form.IChoiceRenderer;
import org.apache.wicket.model.IModel;
public class DropDownIdChoice extends DropDownChoice
{
public DropDownIdChoice(String id, IModel model, IModel choices,
IChoiceRenderer renderer,
Class<?> type)
{
super(id, model, choices, renderer);
setType(type);
}
@Override
public String getModelValue()
{
final Object id = getModelObject();
if (id != null)
{
return getConverter(getType()).convertToString(id, getLocale());
}
else
{
return NO_SELECTION_VALUE;
}
}
}
-igor
On Dec 11, 2007 9:58 AM, Ivaylo Kovatchev <[EMAIL PROTECTED]> wrote:
>
> Fair question. Why return the Id, instead of just using a Property model to
> bind the member field of an object to a child component's model?
>
> Thanks for your insight.
>
> Yevgeni: If you do that you will have to have an object (can be the same one
> that extends DropDownChoice) implement IChoiceRenderer, so that you can see
> the field you are interested in on the dropdown. And also do not forget to
> say
> setChoiceRenderer(this);
> In the constructor.
>
>
> Johan Compagner wrote:
> >
> > yes this is true, you have to have a selected object that comes from the
> > choices
> > Why is this so hard to understand? I find that completely logical.
> >
> > Maybe with generics (1.4) this will be more clear
> >
> > *
> >
> > public* DropDownChoice(String id, IModel<T> model, IModel<List<T>>
> > choices,
> > IChoiceRenderer<T> renderer)
> >
> > So if your model object ins an integer, Then you also have to have a List
> > of
> > integers..
> >
> > Are you guys working with pojos like: Person.getAddressId() instead of
> > Person.getAddress() ??
> >
> > johan
> > On Dec 11, 2007 5:05 PM, Ivaylo Kovatchev <[EMAIL PROTECTED]>
> > wrote:
> >
>
> --
> View this message in context:
> http://www.nabble.com/dropdownchoice-tp14233301p14279580.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]
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
