www.dev-one.com

Fabian VilersTwitter: @fvilers

Hands onASP.NET MVC

ASP.NET MVC – Hands on 2

Dev One is your dedicated partner providing high quality experts on architecture, development, and testing roles on IT projects using Microsoft .NET technologies.

Visit us on:http://www.dev-one.com

We wi l l he lp your enterpr ise to bui ld a state of the art so lut ion us ing the latest avai lable technologies so you can rapidly deploy your appl icat ions and serv ices.

Our proven exper ience, and a deep understanding of your bus iness, wi l l he lp us to you reduce your IT development costs and let your employees concentrate on your core bus iness.

We are a imed at provid ing consul tancy experts on archi tecture , development, and test ing ro les, especia l ly us ing the .NET technologies and the Microsoft ecosystem.

With more than 10 years of mult ip le IT development exper iences, we have forged a set of sk i l l s through var ious pro ject & miss ions in several act iv i ty sectors that enables us to de l iver you high qual i ty serv ices.

ABOUT DEV ONE

ASP.NET MVC – Hands on 3

Presentation What is MVC? MVC on the web today ASP.NET MVC Timeline

Comparison with ASP.NET web forms What web forms does well Where web forms doesn’t fi t ASP.NET MVC believes Should you fear ASP.NET MVC?

The MVC pattern Model View Controller

What’s new in ASP.NET MVC 3 Demos Q & A

AGENDA

4ASP.NET MVC – Hands on

PRESENTATION

ASP.NET MVC – Hands on 5

The MVC pattern is 30+ years old! It is a powerful and elegant means of separating

concerns It makes it easier to test application It promotes parallel development thanks to the loose

coupling between the three main components

WHAT IS MVC?

ASP.NET MVC – Hands on 6

Ruby on RailsDjango and PythonSpring, Struts and JavaZend Framework and PHPMonoRail…

MVC ON THE WEB TODAY

ASP.NET MVC – Hands on 7

Separation of application tasks (input logic, business logic, and UI logic), testability, and test-driven development (TDD) by default

An extensible and pluggable frameworkA powerful URL-mapping component that lets you

build applications that have comprehensible and searchable URLs

Convention over configurationDon’t repeat yourself, keep it simple (DRY/KISS

principles)

ASP.NET MVC

ASP.NET MVC – Hands on 8

TIMELINE

• ScottGu sketched out the core of ASP.NET MVC (~100 lines of code)

February 2007

• Presenstation of Scalene at the Austin ALT.NET conference

September 2007 • First

Community Technology Preview

December 2007

• ASP.NET MVC 1.0

March 2009• ASP.NET MVC source code was released under the MS-PL

April 2009

• ASP.NET MVC 2.0

• Shipped with Visual Studio 2010

March 2010• ASP.NET MVC 3.0

• Shipped with Visual Studio 2010

January 2011

9ASP.NET MVC – Hands on

COMPARISON WITH ASP.NET WEB FORMS

ASP.NET MVC – Hands on 10

Represent a Page as control treeGive these server-side controls events like their

desktop counterpartsHide as much HTTP and HTML as is reasonableMake state management as transparent as possible

WHAT WEB FORMS DOES WELL

ASP.NET MVC – Hands on 11

ViewState is powerful, but it has its drawbacks (weight,…)

Page life cycle can be a nightmareLimited control over HTMLClient IDs and the

ctl00$ContentPlaceHolder1$UserControl1$TextBox1 syndrome It’s nearly impossible to run a Web Form through its

life cycle outside IIS

WHERE WEB FORMS DOESN’T FIT

ASP.NET MVC – Hands on 12

Guiding tenets: Be extensible, maintainable, and flexible Be testable Get out of the user’s way when necessary

Serving methods, not fi lesSeparation of concernsScottHa said: « ASP.NET MVC is Web Forms

unplugged »

ASP.NET MVC BELIEVES

ASP.NET MVC – Hands on 13

ASP.NET MVC is built on top of ASP.NETASP.NET MVC is not a replacement for anything It is just an alternative It’s a totally diff erent approach

SHOULD YOU FEAR ASP.NET MVC?

14ASP.NET MVC – Hands on

THE MVC PATTERN

ASP.NET MVC – Hands on 15

Model objects are the parts of the

application that implement the logic for the application’s data domain

View components that display the

application’s user interfaceController

components that handle user interaction, work with the model, and ultimately select a view to render

THE MVC PATTERN

ASP.NET MVC – Hands on 16

Business logic and validation of the application’s data domain

Totally independant from the views or the controllersModel state can be stored in memory, database, XML

fi les,…

MODEL

ASP.NET MVC – Hands on 17

Application’s user interface using data from the model

No interaction with the models or the controllersViews can be strongly typedAlmost no code

VIEW

ASP.NET MVC – Hands on 18

Handle user interactionQuery the modelSelect the right view to render

CONTROLLER

19ASP.NET MVC – Hands on

WHAT’S NEW IN ASP.NET MVC 3

ASP.NET MVC – Hands on 20

Razor View Engine Support for multiple view engine Global action fi lters « ViewBag » property New « ActionResult » types JavaScript and AJAX improvements Client-side validation enabled by default Remote validator JSON binding support Data annotations metadata attributes Validation interfaces Dependency injection improvements Partial-Page Output Caching Granular Control over Request Validation …

WHAT’S NEW IN ASP.NET MVC 3

21ASP.NET MVC – Hands on

DEMOS

ASP.NET MVC – Hands on 22

Using the ASP.NET MVC 3 template and playing around with Razor

First data access and display a list of authorsManage authorsDisplay a list of booksCreate and edit a book using the ViewModel pattern

Source code available on: http://vil.rs/qK3rMG

BOOK STORE

23ASP.NET MVC – Hands on

Q & A

ASP.NET MVC – Hands on 24