ASP.Net MVC : Patterns and AntiPatterns

Chris Hefley, Bandit Software

Blog: http://indomitablehef.comEmail: indomitablehef@gmail.com

Twitter: @indomitablehef

Model View Controller

HttpRequestASP.Net

ISAPI filter

HttpModules and

HttpHandlers

Some Class

RequestRouted

To

System.Web.UI.PageSystem.Web.Mvc.ControllerSome Model Retrieve Data from

Some View

Render

Anemic Controller

“Skinny Controller, Fat Model”

GOOD

Magic Strings BAD

ASP.Net MVC Magic Strings

Banishing Magic Strings: ViewsInstead of:

Use:

Banishing Magic Strings: Controllers

Banishing Magic Strings: Controllers

One Action, One View GOODInstead of:

One Action, One View

Do this:

View Models GOOD

ViewData Dictionary BAD

ViewModel Base ClassInstead of ViewData Dictionary:

GOOD

ViewModel Base Class

Instead:

Use MVC Contrib w00t!

JavaScript in Views BAD

If you must:

More goodness from MVC Contrib:

Branching Logic in Views BAD

Or even this:

Don’t do this:

Branching Logic in Views

Branching Logic in Views

HttpContext BAD

IOC Container GOOD

IOC Container

Extensions to HtmlHelper GOOD

DataBinding to Domain Object BAD

Custom ActionResult GOOD

Miscellaneous

• Use Html.Encode• jQuery!• Use AcceptVerbs Attribute on Controller

Methods (POST for those that modify Data)• Use ASP.Net MVC to create REST-ful APIs• Extension Methods to UrlHelper• Make good use of ActionFilters

After-Market Parts GOOD

Spark View Engine• Sparkviewengine.com

S#arp Architecture

Questions?

Chris Hefley, Bandit Software

Blog: http://indomitablehef.comEmail: indomitablehef@gmail.com

Twitter: @indomitablehef