This document provides an introduction to ASP.NET MVC for beginners. It discusses some of the weaknesses of traditional ASP.NET WebForms, such as lack of separation of concerns. ASP.NET MVC follows the Model-View-Controller pattern to address these issues by separating the user interface (view), data and business logic (model), and application logic (controller). The MVC pattern promotes loose coupling, testability, and maintainability. ASP.NET MVC builds on ASP.NET to provide a testable alternative to WebForms that supports clean URLs, separation of concerns, and extensibility. It demonstrates the MVC request processing flow from controller to model to view to response.

1. ASP.NET MVCfor BeginnersShravan KumarThomson Reuters

2. Walk Away KnowingIntroduction to ASP.NET MVCProblems with ASP.NET

3. What is ASP.NET?One web applicationframework to rule them all…ASP.NETCachingModulesGlobalizationPagesControlsMaster PagesProfileRolesMembershipIntrinsicsHandlersEtc...

4. ASP.NET WebFormsPresentationASP.NET CORERuntime

5. Are you happy with ASP.NET?

6. WebForms is great, But it does have some weaknesses

7. No real role responsibility…Master PageControlControlUIPresentation LogicBusiness LogicData AccessControlControlPageControlControlControlControlWho does what?How and when?

8. Control abstractions can be negative…

9. It isn’t easy enoughto testUILogic

10. How does ASP.NET MVC Differ?A new Web Application Project typeNot a replacement for WebForms -Builds on top of ASP.NETSimply an another option

11. Now ASP.NETASP.NET WebFormsASP.NETMVCPresentationASP.NET CORERuntime

12. What is MVC?A design patternSeparation of concernsAcronym for Model ● View ● Controller

14. Separation of ConcernsSRP – Single Responsibility Principle

15. DRY – Don’t Repeat YourselfMore easily testable (TDD)Helps with concurrent development

16. MVC

17. Framework GoalsFrictionless TestabilityTight control over <markup/>User/SEO friendly URLsLeverage the benefits of ASP.NETConventions and Guidance

18. Clean URLsREST-like/products/update/blog/posts/2008/08/12/mvc-is-coolFriendlier to humans/product.aspx?categoryid=123 to becomeBecomes /products/kittens/Friendlier to web crawlersSearch engine optimization (SEO)

19. ExtensibleReplace any component of the systemInterface-based architecture

20. Very few sealed methods / classesPlays well with others

21. What is MVC? ControllerRequestStep 1Incoming request routed to Controller

22. What is MVC?ControllerModelStep 2Controller processes request and creates presentation Model

23. What is MVC? ControllerViewStep 3Model is passed to View

24. What is MVC? ControllerViewStep 4View transforms Model into appropriate output format

25. What is MVC? ControllerViewResponseStep 5Response is rendered

26. DEMO – ASP.NET MVC