public RandomizationProcessViewModel(GlobalWizardViewModel globalModel)
        {
            if (globalModel == null)
            {
                throw new ArgumentNullException("globalModel");
            }

            _globalModel = globalModel;
        }
        public Step2ViewModel(GlobalWizardViewModel globalModel, ISettingsService settingsService)
        {
            if (globalModel == null)
            {
                throw new ArgumentNullException("globalModel");
            }
            if (settingsService == null)
            {
                throw new ArgumentNullException("settingsService");
            }

            _globalModel     = globalModel;
            _settingsService = settingsService;

            Initialize();
        }