class mypage() {
  static int[] pages=new int[] {10,15,20,25};

  public mypage () {
    final DataTable dt=new datatable(..);

   add(new dropdownchoice("pages", new imodel() {
       void setObject(Object e) { dt.setrowsperpage((Integer)e); }
       Object getObject() { return td.getrowsperpage(); }
       void detach() {}), pages);
}

-igor


On 8/26/07, janders <[EMAIL PROTECTED]> wrote:
>
>
> The format of the Exception got munged with the example code. This should
> read as:
>
> IllegalStateException: Attempt to set model object on null model of
> component: rows
>
> final DataTable contacts = NEWDataTable("contacts", columns,
> contactProvider, rowsPerPage) {
>     @Override
>     PROTECTEDItem newRowItem(String id, INTindex, IModel model) {
>         RETURNNEWOddEvenItem(id, index, model);
>     }
> };
>
>
> janders wrote:
> >
> > I would like to be able to add a dropdown to a DataTable so that a user
> > can change the rowsPerPage.  Has anyone done this before?  If not, what
> is
> > the best / recommended approach?
> > I tried the following, but I get:
> >
> > IllegalStateException: Attempt to set model object on null model of
> > component: rowsFINALDataTable contacts = NEWDataTable("contacts",
> columns,
> > contactProvider, rowsPerPage) {
> >     @Override
> >     PROTECTEDItem newRowItem(String id, INTindex, IModel model) {
> >         RETURNNEWOddEvenItem(id, index, model);
> >     }
> > };
> >
> > List rows = Arrays._asList_(NEWString[] {"5", "10", "15", "20", "all"});
> > add(NEWDropDownChoice("rows", rows) {
> >     @Override
> >     PROTECTEDBOOLEANwantOnSelectionChangedNotifications() {
> >         RETURNTRUE;
> >     }
> >     @Override
> >     PROTECTEDVOIDonSelectionChanged(FINALObject newSelection) {
> >         IF(newSelection == "all") {
> >             contacts.setRowsPerPage(100000); // use really big number to
> > display all
> >         } ELSE{
> >             contacts.setRowsPerPage((Integer) newSelection);
> >         }
> >     }
> > });
> >
> > - JA
> >
> >
> >
>
> --
> View this message in context:
> http://www.nabble.com/DataTable-with-DropDownChoice-to-set-rowsPerPage-tf4332526.html#a12339585
> Sent from the Wicket - User mailing list archive at Nabble.com.
>
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