C# (CSharp) ReferenceCategoriesServices примеры использования

Пример #1

 public ReferenceCategoryController()
 {
     if (referenceCategoriesServices == null)
     {
         referenceCategoriesServices = new ReferenceCategoriesServices();
     }
 }

Пример #2

        public ReferencesController(IHostingEnvironment hostingEnvironment)
        {
            if (referencesServices == null)
            {
                referencesServices = new ReferencesServices();
            }

            if (referenceCategoriesServices == null)
            {
                referenceCategoriesServices = new ReferenceCategoriesServices();
            }

            _hostingEnvironment = hostingEnvironment;
        }