public GenericOptionsViewModel (
      IOptionsViewModelParent parent,
      GeneralOptions generalOptions,
      IOutlookAccountPasswordProvider outlookAccountPasswordProvider,
      Func<ISettingsFaultFinder, ICurrentOptions, IServerSettingsViewModel> serverSettingsViewModelFactory,
      Func<ICurrentOptions, IMappingConfigurationViewModelFactory> mappingConfigurationViewModelFactoryFactory,
      IOptionTasks optionTasks)
        : base (parent)
    {
      if (generalOptions == null)
        throw new ArgumentNullException (nameof (generalOptions));
      if (outlookAccountPasswordProvider == null)
        throw new ArgumentNullException (nameof (outlookAccountPasswordProvider));
      if (mappingConfigurationViewModelFactoryFactory == null)
        throw new ArgumentNullException (nameof (mappingConfigurationViewModelFactoryFactory));

      _syncSettingsViewModel = new SyncSettingsViewModel();
      _networkSettingsViewModel = new NetworkSettingsViewModel();

      var faultFinder = generalOptions.FixInvalidSettings ? new SettingsFaultFinder (this) : NullSettingsFaultFinder.Instance;
      _serverSettingsViewModel = serverSettingsViewModelFactory (faultFinder, this);
      _generalOptions = generalOptions;
      _outlookAccountPasswordProvider = outlookAccountPasswordProvider;
      _mappingConfigurationViewModelFactory = mappingConfigurationViewModelFactoryFactory(this);
      _outlookFolderViewModel = new OutlookFolderViewModel (faultFinder, optionTasks);
      _outlookFolderViewModel.PropertyChanged += OutlookFolderViewModel_PropertyChanged;
      _timeRangeViewModel = new TimeRangeViewModel();
    }
 /// <remarks>
 /// Just for creating the DesingInstance
 /// </remarks>
 public GenericOptionsViewModel (IOptionsViewModelParent parent, NetworkSettingsViewModel networkSettingsViewModel, OutlookFolderViewModel outlookFolderViewModel, IServerSettingsViewModel serverSettingsViewModel, SyncSettingsViewModel syncSettingsViewModel, ISubOptionsViewModel mappingConfigurationViewModel)
     : base (parent)
 {
   _networkSettingsViewModel = networkSettingsViewModel;
   _outlookFolderViewModel = outlookFolderViewModel;
   _serverSettingsViewModel = serverSettingsViewModel;
   _syncSettingsViewModel = syncSettingsViewModel;
   MappingConfigurationViewModel = mappingConfigurationViewModel;
 }