public CountryCityProvinceService()
 {
     if (_countryCityProvinceManager == null)
     {
         _countryCityProvinceManager = new CountryCityProvinceManager();
     }
 }
        public List <City> GetCities(System.Nullable <int> countryID)
        {
            if (_countryCityProvinceManager == null)
            {
                _countryCityProvinceManager = new CountryCityProvinceManager();
            }

            return(_countryCityProvinceManager.GetCities(countryID));
        }
        public List <Country> GetCountries()
        {
            if (_countryCityProvinceManager == null)
            {
                _countryCityProvinceManager = new CountryCityProvinceManager();
            }

            return(_countryCityProvinceManager.GetCountries());
        }