Silverlight 2 Andrew Pardoe Program Manager CLR Execution Engine

Rich interactive applications Web deployment gives broad reach Windows, Mac OS X, Linux IE, Firefox, Safari, Konquerer Sandboxing provides security Productive design and development Reusable knowledge (XAML &.NET) Best developer tools in the industry Separate design and development

Mac OS X Silverlight 1.0 supports all hardware Silverlight 2 supports Intel Mac Mac is fully supported by Microsoft Major Linux distributions Moonlight runtime implemented by Mono Full cooperation of Microsoft Access to documentation and tests Legal covenant protecting Mono users

Sandboxed applications No user elevation or security prompts within the browser—just click a URL Applications prevented from doing malicious things Limited local interaction Safe isolated storage Client based file upload controls Cross domain networking support

Silverlight “code-behind” model Code lives behind the page Updating the code doesn’t change the design Productive design and development Reusable knowledge (XAML &.NET) Best developer tools in the industry Separate design and development

Designers and developers are different.

Developers work from the inside outward.

Getting started

Silverlight 2 Beta 1 Notepad No SDK required, everything is text A better option… Silverlight Tools for Visual Studio 2008 Expression Blend 2.5 March Preview Everything you need is online

Building “Hello world” in Expression Blend CODE

XAML

eXtensible Application Markup Language Declarative language Rich development tools create plain text Search engines can index Silverlight pages

Composable, reusable UI elements SL 2 adds 20+ controls to the toolbox

Silverlight 2 controls DEMO

Visual Studio automatically declares fields for all x:Name elements Named controls can be referred to in code-behind with full Intellisense support

Event handlers add actions to controls Can be wired up declaratively in XAML or in code-behind with C# Page_Loaded

SL2 Beta 1 adds networking options HTTP, WS*/SOAP, REST, RSS, JSON System.Net.Sockets for non-HTTP protocols such as chat servers Cross domain networking support crossdomain.xml & clientaccesspolicy.xml

Wiring up events with code-behind CODE

Databinding

Databinding allows separation of data presentation and code-behind Works with any IEnumerable object Arrays, Lists, Collections DataTemplates control data presentation Binding can be one-way or two-way

Silverlight 2 introduces new layouts Canvas Drawing surface with relative positions StackPanel Stacks elements vertically or horizontally Grid Arbitrary specification of columns Layout system is customizable TilePanel, RadialPanel, etc.

Language INtegrated Query adds native data querying to.NET Can query, project and filter data from many sources Can be intermixed with C#, VB, etc. Silverlight 2 includes System.LINQ and System.LINQ.Expression

Querying data with LINQ CODE

Finishing touches

Customization mechanisms in XAML Brushes Solid, gradient, image, video Transformations Rotate, scale, skew, translate User controls can expose custom events and properties

Styles allow look and feel of a control to be defined externally Similar to StyleSheets in HTML Define for one file or for entire application by placing in App.xaml

Finished Silverlight app CODE

Business logic is directly usable in Windows applications Silverlight XAML is subset of WPF Silverlight Base Class Library is subset of full.NET Framework CoreCLR runs the same code the same as the desktop CLR Mobile phone support Windows Mobile Symbian OS (Nokia)

Our SL app as WPF DEMO

Extras

Silverlight allows manipulation of HTML DOM and JavaScript integration Wraps DOM and JS elements in managed wrappers SL can call JS, JS can call managed

Silverlight can prompt for local files No need to upload them to the server Security constraints Files opened are read-only Isolated storage provides write access

Questions? Q&A

Silverlight – Get Started Scott Guthrie’s blog – VP for SL and.NET Where to find these slides Moonlight –Silverlight support on Linux

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