Session slides from MIX10 Silverlight 4 workshop.

1. Silverlight 4
frameworks, patterns
Mike Taulty
Microsoft Ltd
@mtaulty
mtaulty@microsoft.com
http://mtaulty.com

2. capabilities
graphics
browser
need to know some or all
media
of this depending on what
local
machine
you’re building
layout
network styling
controls binding
animation resources

3. beyond capabilities
rich
internet
ASP.NET Client Application Services
application
WCF Data Services
WCF RIA Services
navigation
search
extensible applications with MEF
patterns frameworks
*lots of other Silverlight frameworks,
libraries, patterns out there – sorry if I missed your favorite

4. where are we?
ASP.NET Client Application Services
WCF Data Services
WCF RIA Services
navigation
search
extensible applications with MEF

5. ASP.NET Client App Services
• ASP.NET services available to Silverlight clients
ASP.NET
membership
roles
profiles
no specific client libraries here, just add a
reference and make the call

6. enough hot air, do a demo
ASP.NET Services from Silverlight

7. where are we?
ASP.NET Client Application Services
WCF Data Services
WCF RIA Services
navigation
search
extensible applications with MEF

8. RESTful services (in general)
Resources
HTTP Request
URL Res 1
VERB GET Res 2
Payload POST Res 3
PUT Res 4
XML JSON
DELETE
HTTP Response
Status
Payload
XML JSON

9. odata
• Open Data Protocol ( odata )
– www.odata.org
– published under the Open Specification Promise
• Extends the AtomPub standard to add
– an addressing scheme
– a mechanism for schema
– alternate representation – JSON
– handling for concurrent updates
– handling for batched requests

10. WCF Data Services ( “Astoria” )
http://server/customers(‘alfki’)/Orders?$top=20
metadata
Atom
implementation of odata
for the client and the server

11. enough hot air, do a demo
WCF Data Services from Silverlight

12. WCF Data Services
oData – There’s a Feed for That
oData – How to Create a Feed for That
To learn about OData go to
Pablo/Mike’s talks
Tuesday 11.30am
Lagoon L
Tuesday 3pm
Breakers H
( check 2 B sure )

13. where are we?
ASP.NET Client Application Services
WCF Data Services
WCF RIA Services
navigation
search
extensible applications with MEF

14. WCF RIA Services
DomainContext DomainService
Stateful view + Bindable Data Stateless CRUD + App Logic
class PlateViewDomainService class PlateViewDomainService
EntityList<Restaurant> Books { get } Data Model + IQueryable<Restaurant> GetRestaurants()
EntityQuery<Restaurant> GetRestaurantQuery() IQueryable<Restaurant> SearchRestaurant(string)
EntityQuery<Restaurant> SearchRestaurantQuery(string)
Metadata +
Shared Code void AddRestaurant(Restaurant)
class Restaurant Validation and authorization rules,
Data members + Validation Application workflows, …
Data Model
class Restaurant
Rich Internet Application Services
Presentation Domain Network
Data App Data Access
Logic Context Service
Logic Layer
Under the covers infrastructure
DB
Note: Slide stolen from Brad Abrams

15. WCF RIA Services
• WCF RIA Services (fka .NET RIA Services)
You’re building an application
– You’re responsible for both server and client deep in
business logic and semantics
• WCF Data Services (fka “Astoria”)
You’re exposing/acquiring data
– You control one side or the other, not both
– CRUD among arbitrary producers / consumers logic and
semantics are invisible
NB: Slide stolen from Brad Abrams

16. enough hot air, do a demo
WCF RIA Services

17. WCF RIA Services
Developing with WCF RIA Services
Quickly & Effectively
To learn about WCF RIA Services
go to Nikhil Kothari’s talk
Tuesday 1:30pm
Lagoon H
( check 2 B sure )

18. where are we?
ASP.NET Client Application Services
WCF Data Services
WCF RIA Services
navigation
search
extensible applications with MEF

19. navigation
Page
• Frame displays a Page
authors.xaml
<UserControl> Page
<Frame
Source=“authors.xaml”/>
books.xaml
• navigation between pages
– call Frame.Navigate() or set the Source property
– or use a HyperlinkButton ( NavigateUri/TargetName )
• navigation history
– call Frame.[Can]Go[Back()/Forward()]

20. navigation
Page
• Frame displays a Page
authors.xaml
<UserControl> Page
<Frame
Source=“authors.xaml”/>
books.xaml
• navigation can integrate with the browser
– enables hyperlinking into Silverlight content
– requires a browser!
– requires a hidden iframe on the hosting page
– for top level Frames not nested frames

21. navigation
navigate: http://booksite/default.aspx#/authors/steinbeck
navigate: /authors/steinbeck
Frame
UriMapper ContentLoader
Uri MappedUri
/authors/{author} /views/authors.xaml?surname={author}
/{pageName} /views/{pagename.xaml}
Asynchronously turns the URI
into a Page or UserControl

22. enough hot air, do a demo
Navigation Framework in Silverlight 4

23. where are we?
ASP.NET Client Application Services
WCF Data Services
WCF RIA Services
navigation
search
extensible applications with MEF

24. search
• search engines visiting a page with Silverlight
– read robots.txt and sitemap
– read/index the page title
– read/index the <meta name=“description”/>
– read/index the surrounding HTML ( if any )
– will not read XAP or dynamic Silverlight content
• approach
– alternate content in the <object/> tag
– for both search engines & down-level clients

25. enough hot air, do a demo
offering alternate content to search
note – I stole this demo, it comes from the WCF RIA Services Code Gallery
and is called “Silverlight Store”

26. WCF RIA Services
Search Engine Optimization for MS
Silverlight
To learn more about SEO go
to Brad Abrams’ talk
Wednesday 12.00
Lagoon B
( check 2 B sure )

27. where are we?
ASP.NET Client Application Services
WCF Data Services
WCF RIA Services
navigation
search
extensible applications with MEF

28. extensible applications with MEF
• the Managed Extensibility Framework
– “an extensible framework for composing
applications from a set of loosely-coupled parts
discovered and evolving at run-time“ (mike)
• versions
– .NET Framework shipping with Silverlight 4
– .NET Framework 4 shipping with VS 2010
– Silverlight 3 & .NET Framework V3.5 Sp1 ( from
source on CodePlex )

29. essential MEF
Compose
• MEF discovers exports via catalogs
– several “in box” catalogs plus many extensibility points
– supports available exports changing at runtime
• and/or can be handed component instances

30. one application of MEF
MyApp.xap
initial, small download
Extras.xap

31. enough hot air, do a demo
the Managed Extensibility Framework

32. MEF
Silverlight Optimization &
Extensibility with MEF
To really learn about MEF go
along to Glenn Block’s talk
Tuesday, 3.35pm
Lagoon B
( check 2 B sure )

33. resources
www.silverlight.tv www.silverlight.net

34. feedback
eval forms on seat
fill them in 
• ideally, after we’ve finished
tweet @mtaulty, @john_papa

35. © 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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 the date of this presentation.
MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.