private boolean verifierChamp() {
   if (dObs.getValue() == null) {
     MessageDialog.openError(
         Display.getCurrent().getActiveShell(),
         "Champs obligatoire manquant",
         "Date de l'observation");
     return false;
   }
   if (comboType.getSelection().isEmpty()) {
     MessageDialog.openError(
         Display.getCurrent().getActiveShell(),
         "Champs obligatoire manquant",
         "Type de non conformité");
     return false;
   }
   return true;
 }
  @Override
  protected Control createDialogArea(Composite parent) {
    Personne p = null;
    container = (Composite) super.createDialogArea(parent);
    container.setLayout(new GridLayout(1, false));

    Group gIdent = new Group(container, SWT.BORDER);
    gIdent.setText("Identité");
    gIdent.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1));
    gIdent.setLayout(new GridLayout(4, false));

    Label lblNom = new Label(gIdent, SWT.NONE);
    lblNom.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
    lblNom.setText("Nom :");

    Text tNom = new Text(gIdent, SWT.BORDER);
    GridData gd_tNom = new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1);
    tNom.setLayoutData(gd_tNom);

    Label lblPreNom = new Label(gIdent, SWT.NONE);
    lblPreNom.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
    lblPreNom.setText("Prénom :");

    Text tPreNom = new Text(gIdent, SWT.BORDER);
    GridData gd_tPreNom = new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1);
    tPreNom.setLayoutData(gd_tPreNom);

    if (nonConf.getPersonne() != null) {
      p = PersonneServiceImpl.getInstance().getPersonneById(nonConf.getPersonne().getIdPersonne());
      tNom.setText(p.getNom());
      tPreNom.setText(p.getPrenom());
    }
    tNom.setEnabled(false);
    tPreNom.setEnabled(false);

    final Group gDescription = new Group(container, SWT.BORDER);
    gDescription.setText("Description");
    gDescription.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1));
    gDescription.setLayout(new GridLayout(6, false));

    Label lblType = new Label(gDescription, SWT.NONE);
    lblType.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
    lblType.setText("Type :");

    comboType = new ComboViewer(gDescription, SWT.DROP_DOWN | SWT.READ_ONLY);
    comboType.setContentProvider(ArrayContentProvider.getInstance());
    comboType.setLabelProvider(new TypeNonConformiteLabelProvider());
    comboType.getCombo().setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1));
    comboType.setInput(ReferentielServiceImpl.getInstance().getTypeNonConformite());
    comboType.addSelectionChangedListener(
        new ISelectionChangedListener() {

          public void selectionChanged(SelectionChangedEvent event) {
            TypeNonConformite typeNonConformite = null;
            ISelection selectiontypeNonConformite = comboType.getSelection();
            if (!selectiontypeNonConformite.isEmpty()) {
              IStructuredSelection structuredSelection =
                  (IStructuredSelection) selectiontypeNonConformite;
              typeNonConformite = (TypeNonConformite) structuredSelection.getFirstElement();
              comboCat.setInput(
                  ReferentielServiceImpl.getInstance()
                      .getCategorieNonConfByIdTypeNonConformite(
                          typeNonConformite.getIdTypeNonConformite()));
              comboSousCat.setInput(null);
            } else {
              comboCat.setInput(null);
              comboSousCat.setInput(null);
            }
            gDescription.pack();
          }
        });

    Label lblCat = new Label(gDescription, SWT.NONE);
    lblCat.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
    lblCat.setText("Catégorie :");

    comboCat = new ComboViewer(gDescription, SWT.DROP_DOWN | SWT.READ_ONLY);
    comboCat.setContentProvider(ArrayContentProvider.getInstance());
    comboCat.setLabelProvider(new CategorieNonConformiteLabelProvider());
    comboCat.getCombo().setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1));
    if (nonConf.getCategorie() != null) {
      comboCat.setInput(
          ReferentielServiceImpl.getInstance()
              .getCategorieNonConfByIdTypeNonConformite(
                  nonConf.getCategorie().getIdCategorieNonConformite()));

    } else {
      comboCat.setInput(null);
    }
    comboCat.addSelectionChangedListener(
        new ISelectionChangedListener() {

          public void selectionChanged(SelectionChangedEvent event) {
            CategorieNonConformite catNonConformite = null;
            ISelection selectioncatNonConformite = comboCat.getSelection();
            if (!selectioncatNonConformite.isEmpty()) {
              IStructuredSelection structuredSelection =
                  (IStructuredSelection) selectioncatNonConformite;
              catNonConformite = (CategorieNonConformite) structuredSelection.getFirstElement();
              comboSousCat.setInput(
                  ReferentielServiceImpl.getInstance()
                      .getSousCategorieNonConfByIdCategorieNonConformite(
                          catNonConformite.getIdCategorieNonConformite()));
            } else {
              comboSousCat.setInput(null);
            }
            gDescription.pack();
          }
        });

    Label lblSouCat = new Label(gDescription, SWT.NONE);
    lblSouCat.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
    lblSouCat.setText("Sous-catégorie :");

    comboSousCat = new ComboViewer(gDescription, SWT.DROP_DOWN | SWT.READ_ONLY);
    comboSousCat.setContentProvider(ArrayContentProvider.getInstance());
    comboSousCat.setLabelProvider(new SousCategorieNonConformiteLabelProvider());
    comboSousCat.getCombo().setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1));
    if (nonConf.getSousCategorie() != null) {
      comboSousCat.setInput(
          ReferentielServiceImpl.getInstance()
              .getSousCategorieNonConfByIdCategorieNonConformite(
                  nonConf.getSousCategorie().getIdSousCategorieNonConformite()));
    } else {
      comboSousCat.setInput(null);
    }

    Label lblAcc = new Label(gDescription, SWT.NONE);
    lblAcc.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
    lblAcc.setText("Acceptation :");

    comboAcceptation = new Combo(gDescription, SWT.READ_ONLY);
    comboAcceptation.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 5, 1));
    comboAcceptation.setItems(ApplicationContexte.acceptations);

    Label lblComm = new Label(gDescription, SWT.NONE);
    lblComm.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
    lblComm.setText("Commentaire :");

    Text tCommentaire = new Text(gDescription, SWT.MULTI | SWT.BORDER | SWT.WRAP | SWT.V_SCROLL);
    GridData gd_tCommentaire = new GridData(SWT.FILL, SWT.CENTER, false, false, 5, 1);
    gd_tCommentaire.widthHint = 250;
    gd_tCommentaire.heightHint = 96;
    tCommentaire.setLayoutData(gd_tCommentaire);
    if (nonConf.getCommentaire() != null) {
      tCommentaire.setText(nonConf.getCommentaire());
    }

    Label lblDateDeLa = new Label(gDescription, SWT.NONE);
    lblDateDeLa.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
    lblDateDeLa.setText("Date obs :");

    dObs = new FormattedText(gDescription, SWT.BORDER);
    dObs.setFormatter(new DateFormatter("dd/MM/yyyy"));
    GridData gridData_ddObs = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
    gridData_ddObs.widthHint = 75;
    dObs.getControl().setLayoutData(gridData_ddObs);
    if (nonConf.getDateObservation() != null) {
      dObs.setValue(nonConf.getDateObservation());
    }

    Label lblListPrelev = new Label(gDescription, SWT.NONE);
    lblListPrelev.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
    lblListPrelev.setText("Associé au prélèvement :");

    listPrelevement = new ComboViewer(gDescription, SWT.DROP_DOWN | SWT.READ_ONLY);
    listPrelevement.setContentProvider(ArrayContentProvider.getInstance());
    listPrelevement.setLabelProvider(new PrelevementLabelProvider());
    listPrelevement
        .getCombo()
        .setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1));
    if (p != null) {
      java.util.List<Prelevement> prelevements =
          PrelevementServiceImpl.getInstance().findAllByidPersonne(p.getIdPersonne());
      listPrelevement.setInput(prelevements);
    } else {
      listPrelevement.setInput(null);
    }
    listPrelevement.addSelectionChangedListener(
        new ISelectionChangedListener() {

          public void selectionChanged(SelectionChangedEvent event) {
            Prelevement prelevement = null;
            ISelection selectionPrelevement = listPrelevement.getSelection();
            if (!selectionPrelevement.isEmpty()) {
              IStructuredSelection structuredSelection =
                  (IStructuredSelection) selectionPrelevement;
              prelevement = (Prelevement) structuredSelection.getFirstElement();
              List<Analyse> ana =
                  AnalyseServiceImpl.getInstance()
                      .findAllByidPrelevement(prelevement.getIdPrelevement());
              ana.add(new Analyse());
              listAnalyse.setInput(ana);
            } else {
              listAnalyse.setInput(null);
            }
            gDescription.pack();
          }
        });

    Label lblListAnalyse = new Label(gDescription, SWT.NONE);
    lblListAnalyse.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
    lblListAnalyse.setText("pour l'analyse :");

    listAnalyse = new ComboViewer(gDescription, SWT.DROP_DOWN | SWT.READ_ONLY);
    listAnalyse.setContentProvider(ArrayContentProvider.getInstance());
    listAnalyse.setLabelProvider(new AnalyseLabelProvider());
    listAnalyse.getCombo().setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1));

    return container;
  }