Fun with ASP.NET MVC 3, MEF and NuGet (#comdaybe)

Editor's Notes

• #11: Demo01_MVC_DependencyResolverAdd a property to the HomeController for specifying the welcome messageAdd a class “SimpleDependencyResolver.cs”Implement IdependencyResolver (use snippets for some parts)    public class SimpleDependencyResolver        : IDependencyResolver    {        public object GetService(Type serviceType)        {            if (serviceType == typeof(Controllers.HomeController))            {                var controller = Activator.CreateInstance(serviceType) as Controllers.HomeController;                controller.MessageText = "Welcome, this text has been injected!";                return controller;            }            if (serviceType.IsInterface)            {                if (serviceType == typeof(IControllerFactory)) return new DefaultControllerFactory();                if (serviceType == typeof(IControllerActivator)) return null;                if (serviceType == typeof(IFilterProvider)) return GlobalFilters.Filters;                if (serviceType == typeof(IViewEngine)) return new RazorViewEngine();                if (serviceType == typeof(IViewPageActivator)) return null;            }            return Activator.CreateInstance(serviceType);        }        public IEnumerable<object> GetServices(Type serviceType)        {            return new object[] { GetService(serviceType) };        }    } Register dependencyresolver in App_Start:DependencyResolver.SetResolver(new SimpleDependencyResolver());
• #15: Demo02_MefContribCreate a new MVC application (application template)Add an IHelloWorldService    public interface IHelloWorldService    {        string Hello();    } Add a HelloWorldService    [Export(typeof(IHelloWorldService))]    public class HelloWorldService        : IHelloWorldService    {        public string Hello()        {            return "Hello from HelloWorldService!";        }    } Change HomeController     public class HomeController : Controller    {        private IHelloWorldService service;         [ImportingConstructor]        public HomeController(IHelloWorldService helloWorldService)        {            this.service = helloWorldService;        }         public ActionResult Index()        {            ViewBag.Message = this.service.Hello();             return View();        }         public ActionResult About()        {            return View();        }    } Run and fail…NuGet the MefContrib.MVC packageExplain the fact that it uses the /bin folder for part discoveryExplain the use of conventions
• #19: Initech.Components.Theming.DefaultThemeOpen solutionShow it’s nothing but a “plain old” MVC applicationRun the projectDemonstrate it does nothing, it’s just a template…Show the NuGet folder in Windows ExplorerOpen package.nuspec using NuGet Package ExplorerShow people around:Show the “Content” folder, this is where package contents will go. In this case, it will contain the Views, CSS and scripts.Show “lib”: it will contain assemblies (if appropriate for the package)Package.proj is the MSBUILD script that does the packagingOpen itSpecify some settings about what to copy and packageUpdate version number in nuspec fileRun nuget.exe on the nuspec fileAwesomeness!
• #22: Tonen aparte directoryTonen NuGet.ServerTonen MyGet.org
• #24: IniTech.TpsCoverSheetGeneratorCreate an empty MVC applicationAdd a library package reference to InitechThemeDefaultThemeUpdate _ViewStart.cshtml to use _InitechLayout.cshtmlAdd a HomeControllerAdd a viewRun the application to show off the templateRemove the view: we’ll generate that later onAdd library package reference (from command line?) to InitechDomainTpsReportsModify Index() action method:        public ActionResult Index()        {            return View(new TpsReportCoverSheet());        } Add POST action        [HttpPost]        public ActionResult Index(TpsReportCoverSheet model)        {            if (ModelState.IsValid)            {                return View("TpsReportCoverSheet", model);            }             return View(model);        } Add [Authorize] attributeAdd library package reference to InitechWebMvcAuthenticationDemonstrate it adds dependencies from NuGet as well as from Initech package repositoryWe need an implementation for the contracts… InitechAuthenticationMembershipDummy & InitechAuthenticationFormsShow the app: almost no code, we just combined some building blocks…