public void Cleanup()
        {
            test_meiprop = null;
            prop_obj     = null;

            test_meimensur = null;
            mensur_obj     = null;
        }
        public void Init()
        {
            test_meiprop = new Proport();
            prop_obj     = new Proportion();

            test_meimensur = new mei.Mensur();
            mensur_obj     = new Model.Mensur();
        }