ASP.NET MVC for smart people

							ASP.NET MVC For Smart People
Scott Galloway, Program Manager, ASP.NET
Microsoft Corporation
scottgal@microsoft.com
http://www.mostlylucid.net
http://www.twitter.com/scottgal
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, RC1, RC2. 8 releases!
  • Community feedback via forums,
    StackOverflow, 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?

                 Controller
Request




Step 1
Incoming request directed to Controller
What is MVC?

                 Controller

                                  Model




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

                Controller




                             View




Step 3
Model is passed to View
What is MVC?

                 Controller




                                  View




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

                 Controller




                              View

                                     Response




Step 5
Response is rendered
Demo
File->New
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 – Don’t Repeat Yourself

  • 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

• Huge Third Party Control Ecosystem

• Scalable

• Extensible

• Familiar feel to WinForms developers
… they have problems

• Abstractions aren’t very abstract

• Difficult to test

• Lack of control over markup

• It does things you didn’t tell it to do
Demo
A real app (kind of)
Resources
• Phil Haack’s blog: www.haacked.com
• ASP.NET MVC Site: www.asp.net/mvc
• Scott Guthrie’s blog:
  weblogs.asp.net/scottgu
• Rob Conery’s blog: blog.wekeroad.com/