this.add(new SexeDropDownChoice("sexe", new PropertyModel(this.personne, "sexe")).setLabel(new Model("Sexe")).setRequired(true));
this.add(new AnneesDropDownChoice("annees", new PropertyModel(this.dateNaissance, "annee")).setLabel(new Model("Annees")).setRequired(true));
this.add(new MoisDropDownChoice("mois", new PropertyModel(this.dateNaissance, "mois")).setLabel(new Model("Mois")).setRequired(true));
this.add(new JoursDropDownChoice("jours", new PropertyModel(this.dateNaissance, "jour")).setLabel(new Model("Jours")).setRequired(true));
final RequiredTextField courriel = new RequiredTextField("courriel", new PropertyModel(this.personne, "courriel"));
courriel.setLabel(new Model("Courriel")).setRequired(true);
courriel.add(EmailAddressPatternValidator.getInstance());