Silverlight 2 For Developers

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This slide deck details what's new and improved in Silverlight 2 . This is catered to Developers.

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Silverlight 2 For Developers

  1. MSDN Events Autumn, 2008 Silverlight 2.0 Beta 2 A developer overview
  2. What Will We cover? • Where did Silverlight come from and what can it really do • What is XAML and how does it aid in UI authoring • What controls ship with Silverlight and how can they be styled and data-bound • What functionality is available in the Silverlight Base Class Library
  3. Helpful Tools/Downloads • Visual Studio 2008 • Silverlight 2 Beta 2 Runtime • Microsoft Silverlight Tools for Beta 2 for VS2008 • Other useful stuff – Silverlight Beta 2 SDK (installed with tools install) – Expression Studio 2 – Deep Zoom Composer – Silverlight 2 Controls Source Code + Unit Tests
  4. Agenda • Introduction to Silverlight • XAML • Controls • Base Class Library
  5. Silverlight • Formerly known as quot;WPF/Equot; • Microsoft's platform for rich, highly interactive Web experiences and RIAs – Cross-platform (browsers and OSes) • Windows, Mac OS, Linux (quot;Moonlightquot;) • Internet Explorer, Firefox, Safari, and more – XAML-based rendering (subset of WPF XAML) • Implemented as browser plug-in – Quick, easy install experience
  6. Versions • Silverlight 1.0 – Shipped September 2007 – XAML rendering and JavaScript API • Silverlight 2 – Beta 2 currently available – XAML, .NET Framework, managed code, dynamic languages (e.g., IronRuby) – Ships in 2008
  7. Silverlight Architecture
  8. The Silverlight 2 CLR (quot;CoreCLRquot;) • Refactored version of full-size CLR – Same core type system, JIT compiler, etc. – COM interop, remoting, binary serialization, server GC, and other features removed – CAS replaced with transparency model – Multiple CLR instances per process supported – Most globalization support pushed down to OS – Dynamic Language Runtime (DLR) added • Small footprint (< 2MB), cross-platform
  9. Core Base Class Library System.Windows System.Windows.Controls System.Windows.Input System.Windows.Interop System System.Windows.Media System.Collections System.Windows.Shapes System.Collections.Generic System.Windows.Threading System.Diagnostics System.Globalization System.IO System.IO.- IsolatedStorage System.Ref lection System.Windows.Browser System.Security System.Security.Cryptography System.Text System.Threading System.Linq System.Linq.Expressions System.Runtime.CompilerServices System.Security.Cryptography System System.Collections.Generic System.ComponentModel System.Xml System.Diagnostics System.XmlSchema System.Text.RegularExpressions System.Xml.Serialization
  10. Silverlight 2 Project Structure Web project generated by Visual XAP file containing Studio for testing and application assembly, debugging library assemblies, and resources HTML test page Main project XAML file containing global (application) resources and event handlers XAML file containing quot;pagequot; seen by user
  11. Instantiating the Silverlight Control OBJECT tag Control DOM ID <object id=quot;SilverlightControlquot; data=quot;data:application/x-silverlightquot; MIME type type=quot;application/x-silverlight-2-b2quot; Control version width=quot;100%quot; height=quot;100%quot;> <param name=quot;sourcequot; Width and height value=quot;ClientBin/SilverLife.xapquot; /> </object> XAP file containing application assembly, resources, etc. Application package
  12. XAML <Canvas Width=quot;300quot; Height=quot;300quot; xmlns=quot;http://schemas.microsoft.com/client/2007quot; xmlns:x=quot;http://schemas.microsoft.com/winfx/2006/xamlquot;> <Ellipse Canvas.Left=quot;20quot; Canvas.Top=quot;20quot; Height=quot;200quot; Width=quot;200quot; Stroke=quot;Blackquot; StrokeThickness=quot;10quot; Fill=quot;Yellowquot; /> <Ellipse Canvas.Left=quot;80quot; Canvas.Top=quot;80quot; Height=quot;35quot; Width=quot;25quot; Stroke=quot;Blackquot; Fill=quot;Blackquot; /> <Ellipse Canvas.Left=quot;140quot; Canvas.Top=quot;80quot; Height=quot;35quot; Width=quot;25quot; Stroke=quot;Blackquot; Fill=quot;Blackquot; /> <Path Data=quot;M 70, 150 A 60, 60 0 0 0 170, 150quot; Stroke=quot;Blackquot; StrokeThickness=quot;15quot; StrokeStartLineCap=quot;Roundquot; StrokeEndLineCap=quot;Roundquot; /> </Canvas>
  13. Events • XAML objects fire events – Canvases and UI objects fire Loaded events and mouse events (e.g., MouseLeftButtonDown) – Root canvas also fires keyboard events – Other objects fire object-specific events • Handlers can be registered declaratively or programmatically • Mouse events quot;bubble upquot; through XAML object hierarchy
  14. Hello Silverlight
  15. What Did We Just Do? • Created a basic Silverlight application • Added some “Hello World” XAML
  16. Layout • Layout is driven by Panel objects – Every page has a root Grid object – Page can contain additional Grids or Canvases • Panels are a containers for other UI elements – Grids, StackPanel, Canvas are types of panels • All units measured in logical pixels
  17. Shapes • Silverlight supports six shapes Rectangle Ellipse Polygon Line PolyLine Path
  18. MediaElement • Audio/video playback in a box – Progressive downloads and streaming • Robust API provides basis for rich UIs – Play, Pause, Stop, and other methods – Position, Volume, and other properties – DownloadProgressChanged and other events • WMV1/2/3/A/VC1, WMA, and MP3
  19. Transforms TranslateTransform RotateTransform SkewTransform ScaleTransform
  20. Animation • Animations are created by varying properties of XAML objects over time – From/To animations vary properties linearly – Key-frame animations use discrete steps • Animation objects define animations – DoubleAnimation[UsingKeyFrames] – ColorAnimation[UsingKeyFrames] – PointAnimation[UsingKeyFrames] • StoryBoard objects hold animation objects
  21. Blend Smiley Face
  22. What Did We Just Do? • Created a smiley face object using Expression Blend • Applied an animation to the smiley face object • Added some event handling to the smiley face using Visual Studio
  23. Controls • More than 20 built-in controls – Canvas, StackPanel, Grid, and GridSplitter – Button, CheckBox, HyperlinkButton, RepeatButton, RadioButton, and ToggleButton – TextBox, ListBox, and DataGrid – TabControl, Slider, and MultiScaleImage – Border, Calendar, DatePicker, and more! • Support styles, templates, and data binding
  24. Control Hierarchy FrameworkElement Control ContentControl Calendar RangeBase ButtonBase DataGrid Slider Button DatePicker Scrollbar HyperlinkButton GridSplitter ItemsControl RepeatButton TextBox ListBox ToggleButton TabControl CheckBox RadioButton ScrollViewer
  25. Control Hierarchy, Cont. FrameworkElement Panel Border Canvas Image InkPresenter MediaElement Grid MultiScaleImage StackPanel TextBlock
  26. Control Templates • Redefine a control’s entire visual tree – Perform extreme customization without changing basic behavior of control – Exposed through control's Template property (inherited from Control base class) • Use {TemplateBinding} to flow property values from control to template • Use ContentPresenter and ItemsPresenter to flow content and items to template
  27. Styles • Styles provide level of indirection between visual properties and their values – Define style as XAML resource – Apply style using {StaticResource} markup extension • Can be scoped globally or locally • Combine styles and templates to “stylize” controls with custom visual trees
  28. Data Binding • Permits properties of one object to be bound to properties of another – Target property must be DependencyProperty – Source property can be any type of property – Source can be a collection if target supports binding to collections • {Binding} markup extension provides declarative support for data binding
  29. Styled Data-bound ListBox
  30. What Did We Just Do? • Added a ListBox control to our XAML • Applied a DataTemplate to the ListBox • Data-bound our new ListBox control to a generic list of user objects • Applied 2 different styles to our data-bound ListBox
  31. DOM Integration • System.Windows.Browser namespace contains classes for accessing browser DOM • HtmlPage, HtmlWindow, and others • Managed -> unmanaged • Access DOM from managed code • Call JavaScript functions from managed code • Unmanaged -> managed • Call managed code from JavaScript • Process DOM events with managed code
  32. File I/O • General-purpose file I/O not permitted • OpenFileDialog can be used to open files – User interaction constitutes permission needed to safely open files – No SaveFileDialog yet • Isolated storage can be used to persist data locally subject to quotas – Quote is initially set to 1MB per domain but can be increased
  33. Networking • Silverlight 2 has rich networking support – SOAP/XML Web services via WCF proxies – HTTP services (POX, REST, RSS, ATOM) via HttpWebRequest and WebClient classes – Socket support, asset downloads over HTTP, syndication classes, and more • Cross-domain access supported using Flash-compatible or Silverlight XML policy files
  34. Cross-Domain Network Calls • Allowed if target domain has XML policy file in place permitting calls from other domains – Crossdomain.xml – Requires domain=quot;*quot; allowing calls from any domain – Clientaccesspolicy.xml – Can restrict access to certain domains only • Policy file must be located at domain root
  35. HttpWebRequest • Delegate-based HTTP networking API – Supports asynchronous operation only • Provides control over wire format – GET/POST/PUT/DELETE (REST) – Customization of HTTP headers • Completion methods called on background threads
  36. WebClient • Event-based HTTP networking API – Commonly used to download assets • DownloadStringAsync - String • OpenReadAsync – Stream (binary) – Can also be used to perform uploads • Fires progress and completion events and supports cancellation of pending requests – Event handlers execute on UI thread
  37. Consuming RSS Data
  38. What Did We Just Do? • Added a DataGrid control to our XAML • Opened and parsed a local XML file • Downloaded and parsed an RSS feed • Data-bound our parsed data to the added DataGrid control
  39. Session Summary • Microsoft Silverlight is a cross-browser, cross-platform, and cross-device plug-in for delivering the next generation of media experiences and rich interactive applications for the Web • By using Expression Studio and Visual Studio, designers and developers can collaborate more effectively using the skills they have today to light up the Web of tomorrow
  40. For More Information • Visit MSDN at http://msdn.microsoft.com • Visit the URLs below for additional information – http://silverlight.net/default.aspx – http://www.microsoft.com/silverlight – http://msdn.microsoft.com/en-us/library/bb404700(VS.95).aspx
  41. Microsoft Press Publications For the latest titles, visit www.microsoft.com/learning/books/devtools
  42. Non-Microsoft Publications These books can be found and purchased at all major book stores and online retailers
  43. Training Resources For training information and availability www.microsoft.com/learning
  44. RAMP-UP Are you ready to take your career as a developer to the next level? Looking for a learning experience that is designed for you? Join MSDN Ramp Up and Summit Your Career! MSDN Ramp Up is your online source that provides free training and technical resources to help take your development skills to the next level. • Step-by-Step training plans to build your development skills. • Premium technical content created by expert developers for developers. • Access to valuable online e-learning, e-references, and virtual labs. • 50% discount on select certification exams and 30% discount on Microsoft Press training kits. Join Ramp Up for free today! Go to: http://msdn.microsoft.com/rampup

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