private void Initialize() { AddStateToContextCommand = new DelegateCommand(OnAddState, CanAddState); RemoveStateCommand = new DelegateCommand <State>(OnRemoveStateCommand, CanRemoveState); SelectedStates = CollectionHelper.EmptyListCollectionView <State>(); EventAggregator = ServiceLocator.Current.GetInstance <IEventAggregator>(); StateCollection = Context.HospitalRegistryService .GetStates() .Select(state => new KeyValuePair <string, State>(state.Abbreviation, state)) .Concat(new[] { new KeyValuePair <string, State>(SELECT_STATE, null) }) .OrderBy(item => item.Value != null) .ThenBy(item => item.Key).ToListCollectionView(); var defaultStates = HospitalRegion.Default.DefaultStates.OfType <string>().ToList(); defaultStates.ForEach(s => { var toRemove = StateCollection.OfType <KeyValuePair <string, State> >().First(kvp => kvp.Key == s); StateCollection.Remove(toRemove); SelectedStates.AddNewItem(toRemove.Value); }); SelectedStates.CommitNew(); StateCollection.CommitEdit(); StateCollection.MoveCurrentToFirst(); /*Regions for combo box, Object type return "SELECT" on display, and NULL on return using */ RegionTypes = (new[] { typeof(object), typeof(HealthReferralRegion), typeof(HospitalServiceArea) }).ToListCollectionView(); SelectedRegionType = HospitalRegion.Default.SelectedRegionType; }