@SuppressWarnings("serial")
 @Override
 protected void init() {
   super.init();
   /* GRID16 - BLOCK */
   gridBuilder.newGridPanel();
   {
     // Number
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("fibu.kunde.nummer"));
     final MinMaxNumberField<Integer> number =
         new MinMaxNumberField<Integer>(
             InputPanel.WICKET_ID, new PropertyModel<Integer>(data, "id"), 0, KundeDO.MAX_ID) {
           @SuppressWarnings({"unchecked", "rawtypes"})
           @Override
           public IConverter getConverter(final Class type) {
             return new IntegerConverter(3);
           }
         };
     WicketUtils.setSize(number, 7);
     fs.add(number);
     if (isNew() == true) {
       WicketUtils.setFocus(number);
     }
   }
   {
     // Name
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("fibu.kunde.name"));
     final RequiredMaxLengthTextField name =
         new RequiredMaxLengthTextField(
             InputPanel.WICKET_ID, new PropertyModel<String>(data, "name"));
     fs.add(name);
     if (isNew() == false) {
       WicketUtils.setFocus(name);
     }
   }
   if (Registry.instance().getKontoCache().isEmpty() == false) {
     // Show this field only if DATEV accounts does exist.
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("fibu.konto"));
     final KontoSelectPanel kontoSelectPanel =
         new KontoSelectPanel(
             fs.newChildId(), new PropertyModel<KontoDO>(data, "konto"), null, "kontoId");
     kontoSelectPanel
         .setKontoNumberRanges(AccountingConfig.getInstance().getDebitorsAccountNumberRanges())
         .init();
     fs.addHelpIcon(getString("fibu.kunde.konto.tooltip"));
     fs.add(kontoSelectPanel);
   }
   {
     // Identifier
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("fibu.kunde.identifier"));
     fs.add(
         new MaxLengthTextField(
             InputPanel.WICKET_ID, new PropertyModel<String>(data, "identifier")));
   }
   {
     // Identifier
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("fibu.kunde.division"));
     fs.add(
         new MaxLengthTextField(
             InputPanel.WICKET_ID, new PropertyModel<String>(data, "division")));
   }
   {
     // Identifier
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("description"));
     fs.add(
         new MaxLengthTextArea(
             TextAreaPanel.WICKET_ID, new PropertyModel<String>(data, "description")));
   }
   {
     // Status drop down box:
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("status"));
     final LabelValueChoiceRenderer<KundeStatus> statusChoiceRenderer =
         new LabelValueChoiceRenderer<KundeStatus>(fs, KundeStatus.values());
     final DropDownChoice<KundeStatus> statusChoice =
         new DropDownChoice<KundeStatus>(
             fs.getDropDownChoiceId(),
             new PropertyModel<KundeStatus>(data, "status"),
             statusChoiceRenderer.getValues(),
             statusChoiceRenderer);
     statusChoice.setNullValid(false).setRequired(true);
     fs.add(statusChoice);
   }
 }
 @Override
 protected void init() {
   super.init();
   // GRID 50% - BLOCK
   gridBuilder.newSplitPanel(GridSize.COL50);
   {
     // Number
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("legalAffaires.contract.number"));
     fs.add(new DivTextPanel(fs.newChildId(), "C-"));
     numberField =
         new MinMaxNumberField<Integer>(
             InputPanel.WICKET_ID, new PropertyModel<Integer>(data, "number"), 0, 99999999);
     numberField.setMaxLength(8);
     WicketUtils.setSize(numberField, 6);
     fs.add(numberField);
     if (NumberHelper.greaterZero(getData().getNumber()) == false) {
       fs.addHelpIcon(getString("fibu.tooltip.nummerWirdAutomatischVergeben"));
     }
   }
   {
     // Date
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("date"));
     datePanel =
         new DatePanel(
             fs.newChildId(),
             new PropertyModel<Date>(data, "date"),
             DatePanelSettings.get().withTargetType(java.sql.Date.class));
     fs.add(datePanel);
   }
   {
     // Title
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("title"));
     fs.add(createAutocompleteTextField("title"))
         .getField()
         .setRequired(true)
         .add(WicketUtils.setFocus());
   }
   {
     // Contract type
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("legalAffaires.contract.type"));
     final List<ContractType> contractTypes = ConfigXml.getInstance().getContractTypes();
     final LabelValueChoiceRenderer<ContractType> typeChoiceRenderer =
         new LabelValueChoiceRenderer<ContractType>(contractTypes);
     final DropDownChoice<ContractType> typeChoice =
         new DropDownChoice<ContractType>(
             fs.getDropDownChoiceId(),
             new PropertyModel<ContractType>(data, "type"),
             typeChoiceRenderer.getValues(),
             typeChoiceRenderer);
     typeChoice.setNullValid(false);
     fs.add(typeChoice);
   }
   {
     // Status
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("status"));
     // DropDownChoice for convenient selection of time periods.
     final LabelValueChoiceRenderer<String> statusChoiceRenderer =
         new LabelValueChoiceRenderer<String>();
     for (final ContractStatus status : ContractStatus.values()) {
       statusChoiceRenderer.addValue(status.name(), getString(status.getI18nKey()));
     }
     final DropDownChoice<String> statusChoice =
         new DropDownChoice<String>(
             fs.getDropDownChoiceId(),
             new PropertyModel<String>(data, "status"),
             statusChoiceRenderer.getValues(),
             statusChoiceRenderer);
     statusChoice.setNullValid(false);
     fs.add(statusChoice);
   }
   gridBuilder.newSplitPanel(GridSize.COL50);
   {
     // Reference
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("fibu.common.reference"));
     fs.add(
         new MaxLengthTextField(
             InputPanel.WICKET_ID, new PropertyModel<String>(data, "reference")));
   }
   {
     // Resubmission date
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("resubmissionOnDate"));
     resubmissionDatePanel =
         new DatePanel(
             fs.newChildId(),
             new PropertyModel<Date>(data, "resubmissionOnDate"),
             DatePanelSettings.get().withTargetType(java.sql.Date.class));
     fs.add(resubmissionDatePanel);
   }
   {
     // Due date
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("dueDate"));
     dueDatePanel =
         new DatePanel(
             fs.newChildId(),
             new PropertyModel<Date>(data, "dueDate"),
             DatePanelSettings.get().withTargetType(java.sql.Date.class));
     fs.add(dueDatePanel);
   }
   {
     // Signing date
     final FieldsetPanel fs =
         gridBuilder.newFieldset(getString("legalAffaires.contract.signing"), getString("date"));
     signingDatePanel =
         new DatePanel(
             fs.newChildId(),
             new PropertyModel<Date>(data, "signingDate"),
             DatePanelSettings.get().withTargetType(java.sql.Date.class));
     fs.add(signingDatePanel);
   }
   {
     // Validity
     final FieldsetPanel fs =
         gridBuilder.newFieldset(getString("legalAffaires.contract.validity"));
     validFromDatePanel =
         new DatePanel(
             fs.newChildId(),
             new PropertyModel<Date>(data, "validFrom"),
             DatePanelSettings.get().withTargetType(java.sql.Date.class));
     fs.add(validFromDatePanel);
     fs.add(new DivTextPanel(fs.newChildId(), "-"));
     validUntilDatePanel =
         new DatePanel(
             fs.newChildId(),
             new PropertyModel<Date>(data, "validUntil"),
             DatePanelSettings.get().withTargetType(java.sql.Date.class));
     fs.add(validUntilDatePanel);
   }
   gridBuilder.newSplitPanel(GridSize.COL50);
   {
     // CocontractorA
     final FieldsetPanel fs =
         gridBuilder.newFieldset(getString("legalAffaires.contract.coContractorA"));
     fs.add(createAutocompleteTextField("coContractorA"));
   }
   {
     // CopersonA
     final FieldsetPanel fs =
         gridBuilder.newFieldset(getString("legalAffaires.contract.contractPersonA"));
     fs.add(createAutocompleteTextField("contractPersonA"));
   }
   {
     // SignerA
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("legalAffaires.contract.signerA"));
     fs.add(createAutocompleteTextField("signerA"));
   }
   /* GRID8 */
   gridBuilder.newSplitPanel(GridSize.COL50);
   {
     // CocontractorB
     final FieldsetPanel fs =
         gridBuilder.newFieldset(getString("legalAffaires.contract.coContractorB"));
     fs.add(createAutocompleteTextField("coContractorB"));
   }
   {
     // CopersonB
     final FieldsetPanel fs =
         gridBuilder.newFieldset(getString("legalAffaires.contract.contractPersonB"));
     fs.add(createAutocompleteTextField("contractPersonB"));
   }
   {
     // SignerB
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("legalAffaires.contract.signerB"));
     fs.add(createAutocompleteTextField("signerB"));
   }
   /* GRID16 */
   gridBuilder.newGridPanel();
   {
     // Text with JIRA support
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("text"));
     final IModel<String> model = new PropertyModel<String>(data, "text");
     fs.add(new MaxLengthTextArea(TextAreaPanel.WICKET_ID, model));
     fs.addJIRAField(model);
   }
   {
     // Filing
     final FieldsetPanel fs = gridBuilder.newFieldset(getString("filing"));
     fs.add(
         new MaxLengthTextField(InputPanel.WICKET_ID, new PropertyModel<String>(data, "filing")));
   }
   addCloneButton();
 }