ASP.NET MVC

2. ASP.NET MVC Scott Hanselman Senior Program Manager Microsoft

3. Hello Cheesy demo Scott Hanselman Senior Program Manager Microsoft

4. What’s the Point? • This is not Web Forms 4.0 • It’s about alternatives. Car vs. Motorcycle. • Flexible • Extend it. Or not. • Fundamental • Part of System.Web and isn’t going anywhere. • Plays Well With Others • Feel free to use NHibernate for Models, Brail for Views and Whatever for Controllers. • Keep it simple and DRY

5. Goodness – Driving Goals • Maintain Clean Separation of Concerns • Easy Testing • Red/Green TDD • Highly maintainable applications by default • Extensible and Pluggable • Support replacing any component of the system

6. Goodness – Driving Goals • Enable clean URLs and HTML • SEO and REST friendly URL structures • Great integration within ASP.NET • All the same providers still work • Membership, Session, Caching, etc. • ASP.NET Designer Surface in VS2008

7. It’s still ASP.NET • Providers still work • Membership, Caching, Session, etc. • Views leverage .aspx and .ascx • But they don’t have to if you don’t want them to • Within System.Web namespace • Feature Sharing

8. 3 Circles

9. A Little More Detail • Browser requests /Products/ • Route is determined • Controller is activated • Method on Controller is invoke • Controller does some stuff • Renders View, passing in custom ViewData • URLs are rendered, pointing to other Controllers

10. What is MVC? Step 1 Incoming request directed to Controller Controller Request

11. What is MVC? Step 2 Controller processes request and forms a data Model Controller Model

12. What is MVC? Step 3 Model is passed to View Controller View

13. What is MVC? Step 4 View transforms Model into appropriate output format Controller View

14. What is MVC? Step 5 Response is rendered Controller View Response

15. Request Lifecycle demo Scott Hanselman Senior Program Manager Microsoft

16. Routing demo Scott Hanselman Senior Program Manager Microsoft

17. Extensibility • Views • Controllers • Models • Routes …are all Pluggable

18. ViewEngines • View Engines render output • You get WebForms by default • Can implement your own • MVCContrib has ones for Brail, Nvelocity • NHaml is an interesting one to watch • View Engines can be used to • Offer new DSLs to make HTML easier • Generate totally different mime/types • Images, RSS, JSON, XML, OFX, VCards, whatever.

19. Views <%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" AutoEventWireup="true" CodeBehind="List.aspx" Inherits="MvcApplication5.Views.Products.List" Title="Products" %> <asp:ContentContentPlaceHolderID="MainContentPlaceHolder" runat="server"> <h2><%= ViewData.CategoryName %></h2> <ul> <% foreach (var product in ViewData.Products) { %> <li> <%= product.ProductName %> <div class="editlink"> (<%= Html.ActionLink("Edit", new { Action="Edit", ID=product.ProductID })%>) </div> </li> <% } %> </ul> <%= Html.ActionLink("Add New Product", new { Action="New" }) %> </asp:Content>

20. NHaml – Extreme Views %h2= ViewData.CategoryName%ul - foreach (var product in ViewData.Products) %li = product.ProductName .editlink = Html.ActionLink("Edit", new { Action="Edit", ID=product.ProductID }) = Html.ActionLink("Add New Product", new { Action="New" })

21. Testing Controller Actions • No requirement to test within ASP.NET runtime. • Use Moq or RhinoMocks or TypeMock • Create Test versions of the parts of the runtime you want to stub

22. TDD demo Scott Hanselman Senior Program Manager Microsoft

23. Complete (ish) Application demo Scott Hanselman Senior Program Manager Microsoft

24. What’s the Point? • This is not Web Forms 4.0 • It’s about alternatives. Car vs. Motorcycle. • Flexible • Extend it. Or not. • Fundamental • Part of System.Web and isn’t going anywhere. • Plays Well With Others • Feel free to use NHibernate for Models, Brail for Views and Whatever for Controllers. • Keep it simple and DRY

25. Choosing Between The Two

26. You Might be an MVC if… With Apologies to Jeff Foxworthy • You want full control over markup • You want a framework that enforces separation of concerns • TDD/Unit Testing is a priority for you • Control abstractions get in your way more than they help • You like writing Javascript

27. You Might be a WebForm if… With Apologies to Jeff Foxworthy • You like programming against controls that encapsulate UI and logic • You like the WYSWIG designer and would rather avoid angle brackets • You like keeping logic on the server rather than hand writing Javascript

28. Is ASP.NET MVCReady for Release?

29. Q & A

30. Resources • www.microsoft.com/teched Tech·TalksTech·Ed Bloggers Live Simulcasts Virtual Labs • http://microsoft.com/technet • Evaluation licenses, pre-released products, and MORE! • http://microsoft.com/msdn Developer’s Kit, Licenses, and MORE!

31. Resources for Developers http://www.asp.net http://www.silverlight.net http://www.msdn.com http://www.microsoft.com/teched

32. ASP.NET Community – www.asp.net • Great Learning Content • 219 Videos, 83 Tutorials, Starter Kits,Webcasts, Podcasts, suggested Books • Questions? Need an Answer (Forums) • Over 132,000 new questions a year • 72% answered within 7-days • Stay up-to-date with Blogs • Download the latest alphas, betas, and releases • Participate, Contribute, Summit, Learn • ASP.NET Wiki, Control Gallery

33. Please complete an • evaluation

34. Be well,write good code,and stay in touchscottha@microsoft.comhttp://hanselman.com

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