Silverlight 2 CoreCLR Bringing the power of.NET to the net Andrew Pardoe, Common Language Runtime.
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Transcript of Silverlight 2 CoreCLR Bringing the power of.NET to the net Andrew Pardoe, Common Language Runtime.
• Programming with the Silverlight 2 .NET Framework is the right client-side solution for the web
Agenda
• Programming with the Silverlight 2 .NET Framework is the right client-side solution for the web
• We did some really cool things to make .NET programming fit web scenarios
Agenda
• Programming with the Silverlight 2 .NET Framework is the right client-side solution for the web
• We did some really cool things to make .NET programming fit web scenarios
• The web application model makes some unfamiliar .NET features shine
Agenda
Silverlight is differentWhat’s wrong with existing Web
technologies?• They require specialized knowledge• They have weak development tool support
Silverlight uses your existing .NET skills• .NET is the world’s most popular platform• WPF enables rich, reusable UI design
Use the world’s best development tools• Visual Studio• Expression Studio
Silverlight offers...
Rich, interactive applications• Silverlight 2 features• Adaptive streaming of VC-1 high-def video• Animation, vector graphics, scalable text
• Silverlight 3 features• H.264 high-def video support• 3D graphics & GPU acceleration
Broad customer reach• Fast, simple install• Cross-platform support
Web development
Design and development• WPF provides a better workflow through
a clean interface separating development from design
Deployment• Simplified deployment: just create
a .XAP and link to it from your web page
The rest of the CLR is the same
XAML
eXtensible Application Markup Language• Declarative language describes user
interface• UI elements map directly to .NET objects• Created with Expression Blend• Visual Studio contains a WPF designer (“Cider”)
XAML
eXtensible Application Markup Language• Declarative language describes user
interface• UI elements map directly to .NET objects• Created with Expression Blend• Visual Studio contains a WPF designer (“Cider”)
Developer != DesignerCider is targeted to developers• Toolbox of XAML controls• Gridlines, zoom, split screen
Use Cider to define the interface between functional code and UI elements• x:Name names a object that C# can use• Event handlers hook up actions to
functions
Hosting CoreCLR
NPCtrl.dll: Hosted in the browser through ActiveX
AGCore.dll: Silverlight Presentation Foundation
CoreCLR.dllMSCorLib.dll: .NET Framework for SilverlightSystem.*.dll
XAML
Sandboxed executionSilverlight applications execute in a
sandbox• One AppDomain per .XAP• AppDomainManager controlled by Silverlight
Communicate through the HTML DOM
Application models
.NET for Silverlight is the same across desktop and browser application models• Managed languages are the same• WPF and BCL are subsets of the desktop
CoreCLR is the same as the desktop CLR• JIT focuses on startup time• GC runs in interactive (non-server) mode
So what’s different?
Execution engine is 100% compatible• Tuned for interactive applications
BCL (and WPF) are subsets of the desktop• Some things not applicable on the web• Code Access Security removed• No support for full-trust scenarios
APIs consistent across application models
Mac OS X support
CoreCLR, MSCorLib, and other platform
assembliesperform system calls
Platform Adaptation
Layer
Mac OS X (Darwin)
Win32
CoreCLR is...
Smaller• Exposes the subset of functionality that
makes sense for the web application model
More secure• Web applications are partial trust
Consistent and compatible• Reuse your existing skills across desktop
and web application models
Transparent code
Security Transparency model replaces CASCode is divided into three groups• Transparent code cannot perform actions
requiring escalated privilege• Security Critical code does all work
requiring escalated privilege
Transparent code cannot call Security Critical code directly
SafeCritical code
Transparent User code wants to write to a file on disk
[SecurityCritical] Platform code (full-trust) calls Win32 functions
[SafeCritical]Validates that request is safe and appropriate
In-process side by sideCLR has never been able to run side
by side with itself in a single processCoreCLR is not intended to replace
desktop• If we want to run in a managed
browser, we need Inproc SxS• You don’t need to worry about a CLR
being installed on the user’s machine
DLR
Dynamic Language Runtime brings • IronPython• IronRuby
DLR services are usable by any language• Dynamic type system• Dynamic method dispatch• Dynamic code generation
Silverlight .NET Framework is the right choice for client-side web applications• You already know how to code
against the Silverlight 2 .NET Framework
• The libraries are targeted toward the browser application model
• Silverlight is small, fast and secure
What you’ve learned
Other sessions
Silverlight liiketoimintasovelluksissa17:30 – 18:30 5.3.2009
An Introduction to F# 09:30 – 10:30 6.3.2009Code Contracts, Pex and CHESS 11:00 – 12:00 6.3.2009.NET Common Language Runtime 4 16:00 – 17:00 6.3.2009
Questions?More questions?
mailto://[email protected] Silverlight – Get Started
http://silverlight.net/GetStarted/Great CLR blogs on MSDN
http://blogs.msdn.com/clrteam CLR blog links to other great CLR team blogs
Scott Guthrie’s bloghttp://weblogs.asp.net/scottgu
Where to find these slideshttp://blogs.msdn.com/apardoe