public ActionResult Complete()
        {
            var configuration = Session[Constants.ConfigurationSessionKey] as ConfigurationViewModel;

            if (configuration == null)
            {
                Json(new { Error = KonfiguratorResx.Error_CompletionFailed });
            }

            var viewModel = _viewModelService.CreateConfigurationOverviewViewModel(configuration);

            return(PartialView("_ConfigurationOverview", viewModel));
        }