ASP.NET 4.0 Web Developers User Group Israel June 2009

Overview of Talk ASP.NET supports several very different types of web applications

ASP.NET 3.5 Service Pack 1 Microsoft Entity Framework ADO.NET Data Services Dynamic Data Microsoft AJAX Improvements Browser History Script Combining

ASP.NET Core

AppDomain Pool HttpApplicationFactory HttpRuntime HttpApplication Request from host HttpContext HttpApplication HttpContext ASP.NET Runtime

Http Handler HttpApplication BeginRequest() AuthenticateRequest() AuthorizeRequest() ResolveRequestCache() AcquireRequestState() PreRequestHandlerExecute() EndRequest() UpdateRequestCache() ReleaseRequestState() PostRequestHandlerExecute() HttpModule IHttpHandler Init IHttpHandlerFactory

ASP.NET Core Enhancements Cache Extensibility Auto-Start Web Applications Browser Capabilities Extensibility Session State Compression

Output Cache Extensibility Store generated output of aspx/ascx Http.sys Integration HttpSubstituation Callback ASP.NET 4.0 OutputCacheProvider Future – Cache API Extensibility Providers for 3 rd Party, Velocity, FileSystem

Auto-Start Web Applications Usual approach: Application_Start Auto-Start ASP.NET IIS 7.5 IProcessHostPreloadClient AppPool startMode set to “alwaysRunning”

Browser Capabilities ASP.NET Determines Browser Capabilities Config\Browser Directory Create or Update and XML file Aspnet_regbrowsers BrowserCapabilitiesCodeGenerator ASP.NET HttpCapabilitiesProvider

Session State Compression CPU Intensive Used when state is out of porcess compressionEnabled in web.config DeflateStream/GZipStream Useful in the ASP.NET world anyway..

ASP.NET Web Forms

With ASP.NET 4.0, you are in control : Control Rendering Control IDs View State Website URLs XHTML and Accessibility

Code Snippets HTML div, table, img … ASP.NET scriptmanager, sqldatasource, formview … ASP.NET AJAX behavior, control … JScript function, forin …

FormView Improvements <asp:FormView ID="Formview1" RenderTable="false" runat="server">

ListView Improvements

Control Your View State New Property - Control.ViewStateMode Enabled Disabled Inherit (default) Also applicable on the Page level in the future Different than EnableViewState Control State persists anyway

Control Your Client IDs Control.ClientIdMode Legacy Static Predictable Inherit (default) $get( ) vs alternatives

Control Your Client IDs

ASP.NET Routing.NET 3.5 SP1 a Defined in Global.asax via RouteTable Access via Page.RouteData ExpressionBuilders RouteUrl RouteValue RouteParameter

Other Search Engine Optimization Improvements Page.Description Page.Keywords Response.RedirectPermanent(new url) SEO Toolkit for IIS 7.0

QueryExtender Control Works with EntityDataSource and LinqDataSource Enables you to filter database results Accepts different types of expressions: Search Range Property Custom

ASP.NET AJAX

Client-Side Templates Client-Side Controls Client-Side Data Binding Read/Write Database Data from the Browser Cross-Browser Compatible Not tied to ASP.NET

Client Side Templates Client templates replicate HTML XHTML compliant (use namespace extensions) Placeholder notation similar to Silverlight/WPF {{ Name }} Interspersed code and markup Declarative behavior and events

Customizing Templates Expression language is JavaScript {{BirthDate.localeFormat("dd/MM/yyyy")}} Can leverage pseudo columns and interspersed code and markup code:if code:before code:after $index $dataItem

Live Binding Live Bindings Reflect changes live from data {binding Name} Reflect changes live back to data from user input No round-trip to server Convert and ConvertBack functions

ASP.NET AJAX Refactored Microsoft AJAX Library MicrosoftAjaxCore.js MicrosoftAjaxComponentModel.js MicrosoftAjaxSerialization.js MicrosoftAjaxGlobalization.js MicrosoftAjaxHistory.js MicrosoftAjaxNetwork.js MicrosoftAjaxWebServices.js MicrosoftAjaxApplicationServices.js MicrosoftAjaxTemplates.js (New ) MicrosoftAjaxAdoNet.js (New)

ASP.NET AJAX Created by John Resig Open Source Microsoft Product support jQuery Intellisense Supported in Visual Studio 2008 Supported in Visual Studio 2010

ASP.NET MVC

Enables a clear separation of concerns Enables testability including test-driven development Enables fine-grained control over HTML and JavaScript ASP.NET 4.0 Asynchrnous controllers Declarative Controls Ajax support (+partial rendering)

ASP.NET Dynamic Data

DynamicDataManager Control DynamicHyperLink Control Field Templates for and URL Support for Inheritance and Many-to-Many Relationships Entity Templates

ASP.NET Dynamic Data Entity Templates

Conclusion ASP.NET supports several very different types of web applications

Resources ASP.NET 4.0 and Visual Studio 2010 Web Development Overview CodePlex ASP.NET Previews

ASP.NET 4.0