dont use a compound model, that is just a shortcut for common cases.
create a model that keeps an index and a ref to the list model, and pulls
things in and out like that.
class indexedmodel implements imodel {
private final imodel list;
private final int index;
getobject() { return list.getobject().get(index); }
setobject(object o) { list.getobject().set(index, o); }
detach() { list.detach(); }
}
and pass one of those to the dropdownchoice
-igor
On 8/4/07, Tauren Mills <[EMAIL PROTECTED]> wrote:
>
> Hello,
>
> I have a process that reads a CSV data file. The data contains lists
> of people, but the number of fields, the order and the type of fields
> can vary from one CSV to another.
>
> Because the data in each column is unknown, a form is displayed with a
> preview of the data in a table. The table column headers contain
> dropdown list of possible field types for each column in the csv file.
> I'm using a RepeatingView to generate the headers.
>
> The problem is, I'm unclear how to design the CompoundPropertyModel
> for the form. I assume my model needs to contain a collection of some
> sort since I have a varying number of field. But how do I map the set
> of RepeatingView->WebMarkupContainer->DropDownChoice objects to the
> model as a collection?
>
> Here's the code:
>
> preview = importer.previewImport(new FileInputStream(dataFile),10,2);
> ...
> RepeatingView headers = new RepeatingView("header");
> form.add(headers);
> int numFields = preview.getRecords()[0].getFields().length;
> for (int j = 0; j < numFields; j++) {
> WebMarkupContainer cell = new WebMarkupContainer(headers.newChildId());
> headers.add(cell);
> cell.add(new EdiCriteriaDropDownChoice("criteria").setRequired(true));
> }
>
> And the markup:
>
> <table cellspacing="1">
> <tr>
> <th wicket:id="header">
> <select name="select"
> wicket:id="criteria"></select>
> </th>
> </tr>
> ...
> </table>
>
> What kind of model would work with this?
>
> Thanks,
> Tauren
>
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