private void Page_Loaded(object sender, RoutedEventArgs e)
        {
            ServiceRecipeCreator = new ServiceRecipeCreator();
            List <RecipeCreator> recipeCreators = ServiceRecipeCreator.AllWithRecipes();

            ListViewRecipeCreators.ItemsSource = recipeCreators;
            TextBlockCountRecipeCreators.Text  = (recipeCreators.Count).ToString();

            ServiceProduct = new ServiceProduct();
            ListViewProductsToRestock.ItemsSource = ServiceProduct.AllForDemo();

            ServiceClient = new ServiceClient();
            TextBlockCountClients.Text = ((ServiceClient.All()).Count).ToString();

            ServiceRecipe = new ServiceRecipe();
            TextBlockCountRecipes.Text = ((ServiceRecipe.All()).Count).ToString();
        }