What’s new in ASP.NET MVC 3 Building a NerdDinner/AppStore Application.

What’s new inASP.NET MVC 3

Building a NerdDinner/AppStore

Application

Introducing NerdDinner.com


• nerddinner.codeplex.com• Free PDF walkthrough (updated to

2.0)– tinyurl.com/aspnetmvc

What’s new in ASP.NET MVC 3

Razor View Engine Multiple View Engine Support

Validation Improvements Dynamic ViewBag

Global Filters New ActionResults Project Dialog Improvements VBHTML Support

Task-based HelpersImproved

Dependency Injection

Porting MVC Script Libraries to jQuery

Granular ValidateInput

Add View Dialog Improvements

Project Dialog Extensibility

Improvements

Improved Caching Support

JSON Binding Support

Upgrading

ASP.NET MVC 3 Application Upgrader

tinyurl.com/upgrademvc3

Multiple View Engine Support

Multiple View Engine Support

protected void Application_Start(){ ViewEngines.Engines.Add(new SparkViewFactory()); …}

Razor

• Clean & Concise• Based on Existing Languages• Intellisense• Code Colorization• Unit Testing Support

Syntax Comparison

Web Forms6 transitions

Razor2 transitions

<ul>@for (int i = 0; i < 10; i++){ <li>@i</li>}</ul>

<ul><% for (int i = 0; i < 10; i++) {%> <li><%=i %></li><%} %></ul>

Layouts

Layout View<html>

<head>

<title>Title<title></head><body>

@RenderSection("Menu")@RenderBody()

</body></html>

@{Layout="~/Views/Shared/

_Layout.cshtml";}@section Menu {

<ul id="pageMenu"><li>Item 1</li><li>Item 2</li>

</ul>}

Web Forms to Razor

Open Source Razor Converter

github.com/telerik/razor-converter

DEMO

Views using Razor

Filters

• Declarative• Cross-cutting concerns• Custom filters• Supported since version 1

Types of Filters

• IActionFilter• IResultFilter• IExceptionFilter• IAuthorizationFilter

Filters Example

[HandleError]public class BlogController : Controller{

[HandleLogging]public ActionResult Index(){ return View(); }

}

Global Filters

• No longer need attributes• Applies to all actions on all

controllers

Global Filters

protected void Application_Start(){ GlobalFilters.Filters.Add(new MyActionFilterAttribute()); …}

DEMO

Logging Errors with Global Filters

Dynamic ViewBag

• Accessible via properties• Properties map to ViewData entries• Late-bound

Dynamic ViewBag

<head>

<title>@ViewBag.Title<title></head>

DEMO

Converting to Dynamic ViewBag

New Action Results

• HttpNotFoundResult• RedirectResult• HttpStatusCodeResult

DEMO

Using New Action Results

JavaScript and AJAX

• JSON Binding• jQuery Validation• Unobstrusive JavaScript– Separation of Presentation and Content– No errors if AJAX isn’t supported

• RemoteAttribute

Unobtrusive JavaScript

HtmlHelper.UnobtrusiveJavaScriptEnabled = true;

code

<configuration> <appSettings>

<add key="UnobtrusiveJavaScriptEnabled" value="true"/> </appSettings></configuration>

web.config

Client Validation

HtmlHelper. ClientValidationEnabled = true;

code

<configuration> <appSettings>

<add key=“ClientValidationEnabled" value="true"/> </appSettings></configuration>

web.config

DEMO

Remote Validation

ResourcesSoftware Application

Developers

http://msdn.microsoft.com/

Infrastructure Professionals

http://technet.microsoft.com/

msdnindia technetindia @msdnindia @technetindia

http://msdn.microsoft.com/

http://technet.microsoft.com/

http://facebook.com/msdnindia






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What’s new in ASP.NET MVC 3 Building a NerdDinner/AppStore Application.

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