MVC 4.0

Session Objective(s): Introduce the ASP.NET MVC feature Demonstrate App Building using ASP.NET MVC

Key Takeaways: ASP.NET MVC puts you in full

control of your application ASP.NET MVC is awesome

Session Objectives And Takeaways

Web 2.0

Why does it seem there are so

few built using ASP.NET

What is Web 2.0?

Marketing hot air?

Or are there some concrete characteristics?

What is ASP.NET MVC? A new Web Application Project type

Simply an option

Not a replacement for WebForms

Builds on top ASP.NET

Manual vs Automatic Transmission

How was it developed?

Transparently Regular source code releases on CodePlex Previews 1 5, Beta thus far. 6 releases! Community feedback via forums, etc

Agilely 94% Code Coverage/1051 unit tests Daily Triage Meetings and weekly design

meetings Small agile team

What is MVC?

A design pattern

Acronym for Model View Controller

Separation of concerns

What is MVC?

Step 1Incoming request directed to Controller

RequestRequest

ControllerController

What is MVC?

Step 2Controller processes request and forms a data Model

ControllerController

Model

What is MVC?

Step 3Model is passed to View

ControllerController

ViewView

What is MVC?

Step 4View transforms Model into appropriate output format

ControllerController

ViewView

What is MVC?

Step 5Response is rendered

ResponseResponse

ControllerController

ViewView

Framework Goals

Frictionless Testability

Tight control over markup

User/SEO friendly URLs

Leverage the benefits of ASP.NET

Conventions and Guidance

Separation Of Concerns

Each component has one responsibility

SRP Single Responsibility Principle

DRY Dont Repeat Yourelf

More easily testable

Helps with concurrent development

Extensible

Replace any component of the system

Interface-based architecture

Very few sealed methods / classes

Plays well with others

WebForms are great

Mature, proven technology

Scalable

Extensible

Familiar feel to WinForms developers

but they have challenges

Abstractions arent very abstract

Difficult to test

Lack of control over markup

It does things you didnt tell it to do

Summary

Not a replacement for WebForms All about alternatives

Fundamental Part of the System.Web namespace Same team that builds WebForms

Providers still work Membership, Caching, Session, etc.

Views leverage .aspx and .ascx But they dont have to if you dont want them

to Within System.Web namespace Feature Sharing

SummaryIts still ASP.NET

Replace Any Part with one of your own As simple or complex as it needs to be to

suit your tasks Plays well with others

Want to use NHibernate for models? OK! Want to use Brail for views? OK! Want to use VB for controllers? OK!

SummaryExtensible

REST-like Fits with the nature of the web

MVC exposes the stateless nature of HTTP Friendlier to humans Friendlier to web crawlers

Search engine optimization (SEO)

SummaryClean URL Structure

Ill be at the PDC Lounge Tuesday, October 28 3:00 PM 6:00 PM if you have more questions.

Breakout Sessions/Chalk Talks: PC30 ASP.NET Dynamic Data PC31 ASP.NET and Jquery PC32 ASP.NET Ajax Futures PC33 Microsoft Visual Studio: Easing ASP.NET Web PC41 ASP.NET Cache Extensibility TL20 EF Futures TL07 Developing Applications using Data Services TL48 Microsoft Visual Studio: Web Development

Futures ES15 Deploying Web Applications with Microsoft IIS

7.0 and the Web Deployment Tool

Related content

Choosing Between The Two

Appendix

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

You Might be an MVC ifWith Apologies to Jeff Foxworthy

You like programming against the reusable control abstraction that encapsulate UI and logic

You like using the WYSWIG designer and would rather avoid angle brackets

You like keeping logic on the server rather than hand writing Javascript

Unit testing with the MVP pattern is sufficient for your needs

You Might be a WebForm ifWith Apologies to Jeff Foxworthy

Slide 1Session Objectives And TakeawaysWeb 2.0What is ASP.NET MVC?How was it developed?What is MVC?What is MVC?What is MVC?What is MVC?What is MVC?What is MVC?Framework GoalsSeparation Of ConcernsExtensibleWebForms are great but they have challengesSummarySlide 18Slide 19Slide 20Related contentChoosing Between The TwoSlide 23Slide 24Slide 25