/// <summary>
        /// Reloads the selected states.
        /// </summary>
        /// <param name="session">The session.</param>
        public void ReloadSelectedStates(ISession session)
        {
            // var configService = ServiceLocator.Current.GetInstance<IConfigurationService>();
            var selectedStates = ConfigurationService.HospitalRegion.DefaultStates.OfType <string>().ToList();

            CollectionItems.OfType <HospitalCategory>().ForEach(x =>
            {
                x.HospitalCountForSelectedRegion = GetHospitalCountForCategory(session, x.Id,
                                                                               selectedStates);
            });
        }