Shine a Light with “Prism” Dave Bost Developer Evangelist http://davebost.com/blog Pre-requisites for this presentation: 1) IoC, DI 2) Presentation patterns Level: Intermediate

http://thirstydeveloper.com “ Looking at someone’s code, but with audio”

Session Objectives And Takeaways Session Objective(s): Able to determine RIA composite application scenarios and recommend solutions for the scenarios using Prism for Silverlight and WPF. Prism – V2 in Feb shipped Feb. ‘09 (Silverlight) Provides written and code-example guidance for composite solution space Supports targeting both Silverlight & WPF composite applications

Session Objective(s):

Able to determine RIA composite application scenarios and recommend solutions for the scenarios using Prism for Silverlight and WPF.

Prism – V2 in Feb shipped Feb. ‘09 (Silverlight)

Provides written and code-example guidance for composite solution space

Supports targeting both Silverlight & WPF composite applications

Are you building this?

Or something like this?

The Challenge

The Solution

Consider Prism Provides Tools to help with separating your app and composing at run-time: Tools to help you discover the pieces Strategies and guidance for recomposition Approaches for communication between these separate components Event help with targeting both Silverlight and WPF

Provides Tools to help with separating your app and composing at run-time:

Tools to help you discover the pieces

Strategies and guidance for recomposition

Approaches for communication between these separate components

Event help with targeting both Silverlight and WPF

Prism-What’s in the box Prism – Composite Client Application Guidance for WPF and Silverlight Library Reference Implementation Documentation Quick-Starts & How-To’s Community – CodePlex Prism 1.0 – WPF Released July 2008 Prism 2.0 – Silverlight Released February 2009

Prism – Composite Client Application Guidance for WPF and Silverlight

Library

Reference Implementation

Documentation

Quick-Starts & How-To’s

Community – CodePlex

Prism 1.0 – WPF

Released July 2008

Prism 2.0 – Silverlight

Released February 2009

Reference Implementation

Prism Core Concepts

Modules Unit Of Application Assembly Collection of Related Components Feature, Services, Views, Data Access Mandatory or Optional or Role Specific Example: Banking app: Checking Module, Credit Card Module, Trading Module, News Module Unit Of Development Independent Development Independent Testing Unit Of Deployment Up-Front, Background or On-Demand

Unit Of Application Assembly

Collection of Related Components

Feature, Services, Views, Data Access

Mandatory or Optional or Role Specific

Example: Banking app: Checking Module, Credit Card Module, Trading Module, News Module

Unit Of Development

Independent Development

Independent Testing

Unit Of Deployment

Up-Front, Background or On-Demand

Modules Module Discovery Pluggable Catalogs Module Loading Background or On-Demand Module Loader Extended In Prism 2.0!

Module Discovery

Pluggable Catalogs

Module Loading

Background or On-Demand

Demo Modules & Catalogs

UI Composition Shell – Application Host Window Regions – Named Areas For View Placement Views – Encapsulate UI & Presentation Logic Region Region Region // View Injection IPositionPresentationModel presentationModel = …; IRegion mainRegion = regionManager.Regions[ &quot;MainRegion&quot; ]; mainRegion.Add( presentationModel.View ); < TabControl RegionManager.RegionName = &quot;MainRegion&quot;> < ItemsControl RegionManager.RegionName = “ResearchRegion” /> < ContentControl RegionManager.RegionName = “ActionRegion” />

Shell – Application Host Window

Regions – Named Areas For View Placement

Views – Encapsulate UI & Presentation Logic

UI Composition View Discovery Composition: Less Complex Black Box ‘App Assembly’ Composition Select Views & Pull into Region Region Region Region New In Prism 2.0! < TabControl RegionManager.RegionName = &quot;MainRegion&quot;> regionManager. RegisterViewWithRegion( &quot;MainRegion&quot;, typeof ( MainView ) );

View Discovery Composition:

Less Complex

Black Box ‘App Assembly’ Composition

Select Views & Pull into Region

Demo UI Composition

Commands and Events Delegate & Composite Commands Simplified Command Handling Event Aggregator Loosely Coupled Pub/Sub Events Event Aggregator Module B Customer Presenter Module A Order Presenter Subscribe Publish Event

Delegate & Composite Commands

Simplified Command Handling

Event Aggregator

Loosely Coupled Pub/Sub Events

Prism Silverlight Logical Architecture HOST APPLICATION LOADING SERVICES CORE SERVICES MODULE PROFFERED SERVICES Modules MODULES Presenter Model View Model ModuleCatalog Module Loader EventAggregator Logging RegionManager Unity Module Initializer

Multi-Targeting User Experiences Desktop – In the Office, Full Functionality, Offline RIA – Out of the Office, Functional Subset, Online WPF Application Silverlight (RIA) Application CLR - Silverlight CLR Desktop BCL BCL BROWSER DESKTOP

User Experiences

Desktop – In the Office, Full Functionality, Offline

RIA – Out of the Office, Functional Subset, Online

Multi-Targeting: Strategies Start with LCD Use Links and Parallel Project Structures Separated Presentation Strategies Keep single source If not, apply the sieve #IF SILVERLIGHT Partial Classes Partial Methods Separate Classes Rewrite the Code

Start with LCD

Use Links and Parallel Project Structures

Separated Presentation Strategies

Keep single source

If not, apply the sieve

Multi-Targeting Controllers Models Presenters Views Views WPF CLR - Silverlight CLR Desktop BCL BCL BROWSER DESKTOP Models Controllers Presenters

Demo Multi-Targeting

Where Can You Find It? www.microsoft.com/compositewpf www.codeplex.com/compositewpf http://msdn.microsoft.com/practices http://blogs.msdn.com/bobbrum http://blogs.msdn.com/blaine

www.microsoft.com/compositewpf

www.codeplex.com/compositewpf

http://msdn.microsoft.com/practices

http://blogs.msdn.com/bobbrum

http://blogs.msdn.com/blaine

Summary Prism Library of Patterns for Composite Client Applications Targets WPF Desktop and Silverlight RIA Applications View Disovery Composition, Separated Presentation Patterns, Module Catalog Multi-Targeting to reuse code between Silverlight and WPF Download from CodePlex and send us feedback

Prism

Library of Patterns for Composite Client Applications

Targets WPF Desktop and Silverlight RIA Applications

View Disovery Composition, Separated Presentation Patterns, Module Catalog

Multi-Targeting to reuse code between Silverlight and WPF

Download from CodePlex and send us feedback

Dave Bost thank you! http://davebost.com http://twitter.com/davebost Q&A