Dynamic Silverlight

Dynamic Silverlight and a bit of Ruby

About me
Tom Adriaenssen
Freelance Developer
.Net, PHP, websites, desktop apps
My blogs:
http://blog.blergh.be
http://codedump.blergh.be
http://www.inferis.org/kindjes (shameless plug)
I run Windows on a Macbook Pro

Talking about
Disclaimer
CLR
DLR
Silverlight
Silverlight 1.0
Silverlight 2.0
Dynamic Silverlight

CLR
Common Language Runtime
Core of the .Net Framework
Created to support multiple languages
Statically typed
Provider of common services for a language
JIT
GC
Security
Debugging
...

DLR
Dynamic Language Runtime
Superset of the CLR
Dynamic language support
(shared) dynamic type system
var foo = bar()
Hosting model
Allows apps to include scripting without much work
Fast codegeneration
Eval

DLR
Available languages ATM:
Visual Basic
Javascript/ecmascript
Ruby
Python
Open source:
source available under the MS-PL

Silverlight
The Evil Empire’s version of Flash
Not equivalent to AIR
Runs in the browser, not standalone
Supported on Windows, MacOS X and on Linux through Moonlight
Uses the “same” markup as WPF
Silverlight markup can be used in WPF
Vice versa is more difficult

Silverlight 1.0
XAML (markup) + Javascript (code)
XAML = display
Browser = scripting
Good for media (video, 3D animation)
No real link with .Net, except for XAML

Silverlight 2.0
XAML (markup) + dll (code)
Previously versioned 1.1
Still in beta
Subset of the .Net Framework
Code reuse
More features than Silverlight 1.0
Eg 2.0 has Controls, 1.0 doesn’t have them
Relatively small footprint (4mb, download once)
Updates automatically

Dynamic Silverlight
Adds support for DLR languages to Silverlight
for end user = result is the same
For developer = more choice
More choice = good
Specific DLR language runtime support is delivered with each Silverlight app
Can be packaged separately to reduce download size
Cached on client

Demo
VERY BASIC Silverlight App
Demonstrates:
Coded in Ruby (thanks to DLR)
Calls into C# dll (DLR and CLR interop)

Dynamic Silverlight

by Inferis on Mar 29, 2008

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