setting enum value

Hi, I have to develop a business module for RFID iAnywhere, I have following code:Example  private bool bISO = new bool();
        [BoolProperty("Persist ISO Tags")]  //shows the drop down list with t and f values - provided solution by RFID iAnywhere
        public bool PersistISO
        {
            get { return bISO; }
            set { bISO = value; }
        }I need to create the combo box with ...