private void txtNomKeyReleased(java.awt.event.KeyEvent evt) {//GEN-FIRST:event_txtNomKeyReleased
        // TODO add your handling code here:
        lst = new DefaultListModel();
        lstClient.setModel(lst);
        for (Client c : lesClient) {
            if (txtNom.getText().regionMatches(true, 0, c.getNom(), 0, txtNom.getText().length())) {
                lst.addElement(c.getNom());
            }
        }
    }//GEN-LAST:event_txtNomKeyReleased