Dave BostDeveloper Evangelisthttp://davebost.com/bloghttp://twitter.com/davebost

Where did Silverlight come from and what can it really doWhat is XAML and how does it aid in UI authoringWhat controls ship with Silverlight and how can they be styled and data-boundWhat functionality is available in the Silverlight Base Class Library

Visual Studio 2008Silverlight 2 RuntimeMicrosoft Silverlight Tools for for VS2008

Other useful stuffSilverlight 2 SDK (installed with tools install)Expression Studio 2 (Blend SP1)Deep Zoom ComposerSilverlight 2 Controls Source Code + Unit Tests

Introduction to SilverlightXAMLControlsBase Class Library

Formerly known as "WPF/E"Microsoft's platform for rich, highly interactive Web experiences and RIAs

Cross-platform (browsers and OSes)Windows, Mac OS, Linux ("Moonlight")Internet Explorer, Firefox, Safari, and more

XAML-based rendering (subset of WPF XAML)

Implemented as browser plug-inQuick, easy install experience

Silverlight 1.0Shipped September 2007XAML rendering and JavaScript API

Silverlight 2Shipped October 2008XAML, .NET Framework, managed code, dynamic languages (e.g., IronPython, IronRuby)

Refactored version of full-size CLRSame core type system, JIT compiler, etc.COM interop, remoting, binary serialization, server GC, and other features removedCAS replaced with transparency modelMultiple CLR instances per process supportedMost globalization support pushed down to OSDynamic Language Runtime (DLR) added

Small footprint (< 2MB), cross-platform

System.WindowsSystem.Windows.ControlsSystem.Windows.InputSystem.Windows.InteropSystem.Windows.MediaSystem.Windows.ShapesSystem.Windows.Threading

System.Windows.Browser

SystemSystem.CollectionsSystem.Collections.GenericSystem.DiagnosticsSystem.GlobalizationSystem.IOSystem.IO.- IsolatedStorageSystem.ReflectionSystem.SecuritySystem.Security.CryptographySystem.TextSystem.Threading

SystemSystem.Collections.GenericSystem.ComponentModelSystem.DiagnosticsSystem.Text.RegularExpressions

System.LinqSystem.Linq.ExpressionsSystem.Runtime.CompilerServicesSystem.Security.Cryptography

System.XmlSystem.XmlSchemaSystem.Xml.Serialization

Web project generated by Visual Studio for testing and debugging

Main project

HTML test page

XAML file containing global (application) resources and event handlers

XAML file containing "page" seen by user

XAP file containing application assembly, library assemblies, and resources

<object id="SilverlightControl" data="data:application/x-silverlight" type="application/x-silverlight-2-b2" width="100%" height="100%"> <param name="source" value="ClientBin/SilverLife.xap" /></object>

<object id="SilverlightControl" data="data:application/x-silverlight" type="application/x-silverlight-2-b2" width="100%" height="100%"> <param name="source" value="ClientBin/SilverLife.xap" /></object>

OBJECT tag

Application package

Control DOM ID

MIME type

Control version

Width and heightXAP file containing application assembly, resources, etc.

<Canvas Width="300" Height="300" xmlns="http://schemas.microsoft.com/client/2007" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> <Ellipse Canvas.Left="20" Canvas.Top="20" Height="200" Width="200" Stroke="Black" StrokeThickness="10" Fill="Yellow" /> <Ellipse Canvas.Left="80" Canvas.Top="80" Height="35" Width="25" Stroke="Black" Fill="Black" /> <Ellipse Canvas.Left="140" Canvas.Top="80" Height="35" Width="25" Stroke="Black" Fill="Black" /> <Path Data="M 70, 150 A 60, 60 0 0 0 170, 150" Stroke="Black" StrokeThickness="15" StrokeStartLineCap="Round" StrokeEndLineCap="Round" /></Canvas>

XAML objects fire eventsCanvases and UI objects fire Loaded events and mouse events (e.g., MouseLeftButtonDown)Root canvas also fires keyboard eventsOther objects fire object-specific events

Handlers can be registered declaratively or programmaticallyMouse events "bubble up" through XAML object hierarchy

Layout is driven by Panel objectsEvery page has a root Grid objectPage 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

<Grid/><Grid/>

<Canvas/><Canvas/>

<StackPanel<StackPanel/>/>

<StackPanel<StackPanel/>/>

Silverlight supports six shapes

Rectangle Ellipse Polygon

Line PolyLine Path

Audio/video playback in a boxProgressive downloads and streaming

Robust API provides basis for rich UIsPlay, Pause, Stop, and other methodsPosition, Volume, and other propertiesDownloadProgressChanged and other events

WMV1/2/3/A/VC1, WMA, and MP3

TranslateTransform

RotateTransform

SkewTransform ScaleTransform

Animations are created by varying properties of XAML objects over time

From/To animations vary properties linearlyKey-frame animations use discrete steps

Animation objects define animationsDoubleAnimation[UsingKeyFrames]ColorAnimation[UsingKeyFrames]PointAnimation[UsingKeyFrames]

StoryBoard objects hold animation objects

Created a smiley face object using Expression BlendApplied an animation to the smiley face objectAdded some event handling to the smiley face using Visual Studio

More than 20 built-in controlsCanvas, StackPanel, Grid, and GridSplitterButton, CheckBox, HyperlinkButton, RepeatButton, RadioButton, and ToggleButtonTextBox, ListBox, and DataGridTabControl, Slider, and MultiScaleImageBorder, Calendar, DatePicker, and more!

Support styles, templates, and data binding

FrameworkElementFrameworkElement

ButtonBaseButtonBase

ContentControlContentControl

ControlControl

ButtonButton

HyperlinkButtonHyperlinkButton

RepeatButtonRepeatButton

ToggleButtonToggleButton

CheckBoxCheckBox

RadioButtonRadioButton

ScrollViewerScrollViewer

CalendarCalendar

DataGridDataGrid

DatePickerDatePicker

GridSplitterGridSplitter

TextBoxTextBox

RangeBaseRangeBase

ItemsControlItemsControl

ListBoxListBox

SliderSlider

ScrollbarScrollbar

TabControlTabControl

FrameworkElementFrameworkElement

CanvasCanvas

PanelPanel

GridGrid

StackPanelStackPanel

BorderBorder

ImageImage

MediaElementMediaElement

MultiScaleImageMultiScaleImage

TextBlockTextBlock

InkPresenterInkPresenter

Redefine a control’s entire visual treePerform extreme customization without changing basic behavior of controlExposed through control's Template property (inherited from Control base class)

Use {TemplateBinding} to flow property values from control to templateUse ContentPresenter and ItemsPresenter to flow content and items to template

Styles provide level of indirection between visual properties and their values

Define style as XAML resourceApply style using {StaticResource} markup extension

Can be scoped globally or locallyCombine styles and templates to “stylize” controls with custom visual trees

Permits properties of one object to be bound to properties of another

Target property must be DependencyPropertySource property can be any type of propertySource can be a collection if target supports binding to collections

{Binding} markup extension provides declarative support for data binding

Added a ListBox control to our XAMLApplied a DataTemplate to the ListBoxData-bound our new ListBox control to a generic list of user objectsApplied 2 different styles to our data-bound ListBox

• 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

General-purpose file I/O not permittedOpenFileDialog can be used to open files

User interaction constitutes permission needed to safely open filesNo 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

• 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

• Allowed if target domain has XML policy file in place permitting calls from other domains• Crossdomain.xml – Requires

domain="*" allowing calls from any domain

• Clientaccesspolicy.xml – Can restrict access to certain domains only

• Policy file must be located at domain root

• 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

• 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

Added a DataGrid control to our XAMLOpened and parsed a local XML fileDownloaded and parsed an RSS feedData-bound our parsed data to the added DataGrid control

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 WebBy 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

Visit the urls below for additional information

http://silverlight.net/default.aspx

http://msdn.microsoft.com/silverlight

http://timheuer.com/blog

For the latest titles, visitwww.microsoft.com/learning/books/devtools

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www.microsoft.com/learning

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Dave Bost

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© 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.

The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after

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