I wrote a method, that creates my DefaultTableModel and there I'm going to add my records. When I set the model to my JTable, the data rows are blank. After scrolling the data gets displayed correct.

How can I avoid this and display the data from the first moment?

EDIT: I imported the javax.swing.table.DefaultTableModel --> is this correct?

private DefaultTableModel _dtm;

private void loadTable(Vector<Member> members) {
    loadTableModel();

    try {
        lbl_state.setText("Please wait");

        for (Member actMember : members) {
            String gender = "";
            if (actMember.getGender() == MemberView.MEMBER_MALE) {
                gender = "männlich";
            } else {
                gender = "weiblich";
            }

            _dtm.addRow(new Object[]{
                        actMember.getNname(),
                        actMember.getVname(),
                        actMember.getCity(),
                        actMember.getStreet(),
                        actMember.getPlz(),
                        actMember.getMail(),
                        actMember.getPhonenumber(),
                        actMember.getBirthdayString(),
                        actMember.getStartDateString(),
                        gender,
                        actMember.getBankname(),
                        actMember.getAccountnumber(),
                        actMember.getBanknumber(),
                        actMember.getGroup().toString(),
                        (actMember.hasAccess() ? "JA" : "NEIN"),
                        actMember.getWriteDateString(),
                        (actMember.hasDrinkAbo() ? "JA" : "NEIN")
                    });
        }
    } catch (Exception ex) {
        System.err.println(ex.getMessage());
    }

    tbl_results.setModel(_dtm);
}

private void loadTableModel() {
    _dtm = new DefaultTableModel(new Object[]{"Nachname",
                "Vorname",
                "Ort",
                "Straße",
                "PLZ",
                "E-Mail",
                "Telefon",
                "Geburtsdatum",
                "Beitrittsdatum",
                "Geschlecht",
                "Bankname",
                "Kontonummer",
                "Bankleitzahl",
                "Gruppe",
                "hat Zugriff",
                "Einschreibdatum",
                "Getränkeabo"}, 0);

    tbl_results.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
}