Yes, that should make your DDC to query the list any time it needs to re
render.
To your 2nd. question in order to set a default or selected value, just set
a "MyRecord" reference to your property, keep in mind that your "MyRecord"
should implement and equals/hashcode correctly.
On Tue, Oct 5, 2010 at 12:00 PM, Shelli Orton [via Apache Wicket] <
ml-node+2956214-1797994246-65...@n4.nabble.com<ml-node%2b2956214-1797994246-65...@n4.nabble.com>
> wrote:
> Hi,
>
> Thanks for replying. Just to clarify, do you mean do something like
> this:
>
>
> LoadableDetachableModel<List<MyRecord>> myRecordsModel = new
> LoadableDetachableModel<List<MyRecord>>()
> {
> @Override
> protected List<MyRecord> load()
> {
> return myRecordService.getList();
> }
> };
>
> MyRecord selectedRecord;
>
> form.add(new DropDownChoice<MyRecord>("records",
> new PropertyModel<MyRecord>(this, "selectedRecord"),
> myRecordsModel,
> new MyRecordRenderer()).setNullValid(false));
>
> Shelli
>
> -----Original Message-----
> From: jcgarciam [mailto:[hidden
> email]<http://user/SendEmail.jtp?type=node&node=2956214&i=0>]
>
> Sent: Monday, October 04, 2010 6:27 PM
> To: [hidden email] <http://user/SendEmail.jtp?type=node&node=2956214&i=1>
> Subject: Re: DropDownChoice/Model Confusion
>
>
> Hi, instead of passing "getMyRecords()" in the constructor wrap it
> around
> a LoadableDetachableModel and pass that model to the DDC. The difference
> is
> that your current list is fetch only once at construction of your pages
> and
> is considered static because its never get called again unless you
> triggered
> it by entering to a new page instance, while by using a LDM the
> component
> will ask for it every time it needs to re-render them.
>
>
> On Mon, Oct 4, 2010 at 6:52 PM, Shelli Orton [via Apache Wicket] <
> [hidden email]
> <http://user/SendEmail.jtp?type=node&node=2956214&i=2><ml-node%2B2955144-66557051
>
> [hidden email] <http://user/SendEmail.jtp?type=node&node=2956214&i=3>>
> > wrote:
>
> > I am writing a (simple?) database CRUD app where I have multiple tab
> > panels that encapsulate the different tables in the database. On a
> > panel there's a dropdownchoice which lists the existing records for
> that
> > table. There's also create, delete and edit buttons (and and edit
> panel
> > with save and cancel buttons). When I create, edit or delete any of
> the
> > records, the dropdownchoice list doesn't reflect the changes until I
> > open a new session. So my question is how to reload the list after
> one
> > of these actions is done?
> >
> > Currently my dropdownchoice model is set like this:
> >
> > MyRecord selectedRecord;
> > ...
> > form.add(new DropDownChoice<MyRecord>("records",
> > new PropertyModel<MyRecord>(this, "selectedRecord"),
> > getMyRecords(), // method that retrieves from the database
> (via
> > JPA)
> > new MyRecordRenderer()).setNullValid(false)); // used to
> return
> > the display attribute of MyRecord
> >
> > I am trying to understand if using a LoadableDetachableModel will do
> the
>
> > reload that I want. Also, I don't know how to set the selectedRecord
> > using that type of model or if it's even possible.
> >
> > Any advice?
> >
> > Thanks!
> >
> > Shelli
> >
> > ---------------------------------------------------------------------
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> >
> >
> >
> > ------------------------------
> > View message @
> >
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>
>
> --
> Sincerely,
> JC (http://www.linkedin.com/in/jcgarciam)
> Work smarter, not harder!.
>
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> View this message in context:
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Sincerely,
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Work smarter, not harder!.
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