Extensibility with sl4 and mef (en)

Construção de Soluções Extensíveis com Silverlight 4.0 e MEF
Nuno Godinho – Independent Consultant

Nuno Filipe Godinho
Independent Consultant
Mail: Nuno.Godinho@itech4all.com
Nuno.Godinho@sapo.pt
MSN: Nuno_God@hotmail.com
Blogs: http://pontonetpt.com/blogs/nunogodinho
http://xamlpt.com/blogs/nunogodinho
http://weblogs.asp.net/nunogodinho
http://msmvps.org/blogs/nunogodinho
Twitter: NunoGodinho
About Me

Agenda

Introduction to MEF
MEF and MVVM
Solution Modularity
Event Aggregation
Summary
Agenda

Introduction to MEF

What is MEF - Managed Extensibility Framework?
“MEF makes building extensible apps, libraries and frameworks easy” – Glenn Block
http://blogs.msdn.com/b/gblock/archive/2008/09/26/what-is-the-managed-extensibility-framework.aspx
“New library in .NET Framework 4 and Silverlight 4 that addresses the extensibility problem by simplifying the design of extensible applications and components”
http://mef.codeplex.com/
Introduction to MEF

Basic Concepts
An Application is built using parts
Introduction to MEF

Basic Concepts
Introduction to MEF
3. Compose
Shell Application
View Models
Modules
Application Parts
1. Import
Pages
Actions
Functionalities
2. Export

MEF and MVVM

DEMO:
ViewModel Injection

DEMO:
ViewModel Extensibility

Solution Modularity

DEMO:
Dynamic XAP Loading

DEMO:
Dynamic XAP Discovery

DEMO:
Dynamic XAP Navigation

Event Aggregation

DEMO:
Event Aggregation

Summary

We can achieve a very high degree of Extensibility in our Applications by using MEF
MEF with MVVM is possible and can give us:
ViewModel Injection
ViewModel Extensibility
...
Summary

Our Solutions sparsed into several XAP’s to gain Performance
Solutions can be much more easily integrated maintaining the loose coupling, using Event Aggregation
Summary

Summary
MEF
Extend their limits
Tightly Coupled
Break the Coupling …

Nuno Godinho
Partner @ ITech4all
Nuno.Godinho@sapo.pt
NunoGodinho

Extensibility with sl4 and mef (en)

by Nuno Godinho on Oct 17, 2010

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Extensibility with sl4 and mef (en) Presentation Transcript

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