Silverlight is dead! Long live MVVM! [email protected].
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Transcript of Silverlight is dead! Long live MVVM! [email protected].
Silverlight is dead!Long live [email protected]
A long time ago…
… when all we had
were Win Forms…
… Microsoft released
Silverlight/WPF
What’s changed?
Declarative UI (XAML)
UI thread belongs to the UI
Your Weather App is not responding
UI thread belongs to the UI
Non absolute layouts
MVVM & Data Binding
View Model
View Model
MVVM – Model View ViewModelBoring diagrams
Separated presentation
DomainObjects
View
Presentation Logic
Different responsibilities
DomainObjects
View
Presentation Logic
User name cannot be empty
When user name entry is empty,
disable submit button
MVVM - Structure
Invoke Commands
Change notifications
DEMO TIME
Old (ancient) idea
View Model!=
Code Behind
DEMO TIME
This MVVM thing is pretty cool.
Silverlight RULEZ!
Silverlight is D E A D !
Silverlight is dead – O RLY?
• Silverlight 5 is a complete platform– Support through 10/12/2021
• WP 7.5/8• WPF
• Yup, it is pretty dead on the web…
Domain Objects
Separated presentation in a browser
View Model
View Model
MVVM in the browser
1032 pages
172 pages
View Model
View Model
MVVM in the browser
?
Simplify dynamic JavaScript UIs by
applying the Model-View-View Model
(MVVM) pattern
Declarative
Bindings
Automatic UI
Refresh
Dependency
TrackingTemplating
DEMO TIME
KnockoutJS Demo
• MVVM pattern– Data binding– Observables– Commands
• Custom bindings
• Promises and Deferred objects
Final (almost) thoughts
• Silverlight is dead (on the web)!
• JavaScript is here to stay… we need client side code…
• JavaScript has good parts– Object oriented– Functional– Dynamic
Final thoughts• There is more to explore and learn
– HTML5, CSS3– REST, JSON– Web Sockets– Web Storage– Worker Threads– Canvas– Audio/Video
Technology changes – focus on principles
Knockout @ Making WavesActivity Feed (activityfeed.codeplex.com)
Forms Designer