1. Practical MVVM
Joel Cochran

2. About Me Expression Blend MVP INETA Community Champion
MCTS (WinForms & WPF)

3. Announcing Blend SIG Virtual User Group
2nd Wednesday of each month, 2pm EST
Videos:
Presenters are deep Blend Experts
Coming soon:

4. My Book! A developer’s guide MEAP available now Published Fall 2011
Published Fall 2011

5. MVVM: Practical Magic? Model, View, ViewModel
Similar to other MVx patterns
Big exception: 2 way communications between View and ViewModel
Allows true separation of concerns
Supports DataBinding
No Code Behind

6. MVVM Parts: Model The Data Data Services XML Files
ADO.NET, LinqToSQL, EF
Consumed by ViewModel(s)
Unaware of View and ViewModel

7. MVVM Parts: View The Screen UI and UX
Visual Representation of the Data
WPF, Silverlight, WP7
Populated by ViewModel(s)
Unaware of the Model
Technically unaware of the ViewModel

8. MVVM Parts: ViewModel The Master & The Middleman Communications
Management
Data formatting
Action items
Unaware of View

9. MVVM Parts: ViewModel Model Model Data Source Model Entities
Data Access Service
ViewModel
ViewModel
Code Behind
View
ViewModel
Code Behind
View
ViewModel
Code Behind
View
Data Binding
View

10. The Practical MVVM Manifesto
Must be simple and discoverable
Must support Blend
Must provide design time data
Must be testable