renderer 3 DropDownChoice

[twa...@gmail.com]

Bom dia. Estou tendo problema pra trabalhar com 3 DropDownChoice rendered.

Adjunto exemplo com error.

Obrigado.

[Diego Rafael]

Qual o problema?

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[twasys twasys]

Ja resolvi  o problema. A modificacao esta em vermelho. O tercer combo na iniciacao ficava vazio.

Obrigado,

package com.myapp.wicket;

import java.util.List;

import org.apache.wicket.PageParameters;

import org.apache.wicket.markup.html.WebPage;

import org.apache.wicket.markup.html.form.ChoiceRenderer;

import org.apache.wicket.markup.html.form.DropDownChoice;

import org.apache.wicket.markup.html.form.Form;

import org.apache.wicket.markup.html.panel.FeedbackPanel;

import org.apache.wicket.model.LoadableDetachableModel;

import org.apache.wicket.model.PropertyModel;

public class HomePagePais extends WebPage {

    private Country country;

    private City city;

    private Town town;

    private String codigoCity;

    public HomePagePais(final PageParameters parameters) {

        country = Database.getCountries().get(0);

       

    

        add(new FeedbackPanel("feedback"));

        Form<?> form = new Form<Void>("form") {

            @Override

            protected void onSubmit() {

                info("Your favorite city is: " + city.getName() + " in " + country.getName()+" y barrio "+ town.getName());

            }

        };

        add(form);

        DropDownChoice<Country> countries = new DropDownChoice<Country>("countries",

                new PropertyModel<Country>(this, "country"), new CountriesModel(),

                new ChoiceRenderer<Country>("name", "code")) {

            @Override

            protected boolean wantOnSelectionChangedNotifications() {

                return true;

            }

            @Override

            protected void onSelectionChanged(Country newSelection) {

                city = null;

                town = null;

            }

        };

        countries.setRequired(true);

        form.add(countries);

        DropDownChoice<City> cities = new DropDownChoice<City>("cities", new PropertyModel<City>(

                this, "city"), new CitiesModel(), new ChoiceRenderer<City>("name", "code")) // NEW

        {

            @Override

            protected boolean wantOnSelectionChangedNotifications() {

             //   System.out.println("wanOnSelection de city :"+city.getCode());

                return true;

            }

            @Override

            protected void onSelectionChanged(City newSelection) {

             

                  //Modificacao

                codigoCity=city.getCode();

                town=null;

               

                

            }

        } // END NEW 

                ;

        cities.setRequired(true);

        form.add(cities);

//      NEW

 

        DropDownChoice<Town> towns = new DropDownChoice<Town>("towns", new PropertyModel<Town>(

                this, "town"), new BarriosModel(), new ChoiceRenderer<Town>("name", "code"));

        towns.setRequired(true);

        form.add(towns);

//     END NEW

    }

    private static class CountriesModel extends LoadableDetachableModel<List<? extends Country>> {

        @Override

        protected List<? extends Country> load() {

            return Database.getCountries();

        }

    }

    private class CitiesModel extends LoadableDetachableModel<List<? extends City>> {

        @Override

        protected List<? extends City> load() {

            return Database.getCities(country.getCode());

        }

    }

//      NEW 

    private class BarriosModel extends LoadableDetachableModel<List<? extends Town>> {

        @Override

        protected List<? extends Town> load() {

           

            return Database.getTowns(country.getCode(), codigoCity);

        }

    }

    //   END NEW

}

2013/4/2 Diego Rafael <diegora...@gmail.com>

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