The document discusses Model-View-ViewModel (MVVM), a software architectural pattern. It separates an application into three main logical components: the model, the view, and the view model. The model represents the data and business logic. The view displays the UI and handles user input. The view model acts as an intermediary between the model and view, preparing the model data for display and passing user input to the model. The document provides examples of each component and notes how data binding and events allow the view and view model to communicate without directly referencing each other. It argues that MVVM promotes loose coupling, testability and maintainability.

1. ModelViewViewModel

2. Felipe PimentelFelipe Pimentel

3. Felipe PimentelFelipePimentellfelipejfp@hotmail.comfpimentel88felipe.pimentel@2pc.com.brhttp://felipepimentel.net

4. Felipe Pimentel

5. AgendaO que é?O que faz?Quando usar?Variações?Light ToolkitDemo!!!

6. “Mais outro M* alguma coisa?”MVPMVCMV?????

7. O que é MVVM?Padrão de arquitetura de apresentaçãoSeparando responsabilidadesIsolar designers e desenvolvedores?Facilita os testes

8. Por que do MVVM?Fatores tecnologicosDatabindsINotifyPropertyChangedIValueConverterModelo de eventos utilizando ICommand

9. MVVMModelViewDataBindingPresentation Model(ViewModel)

10. ModelMVVMRepresents the dataThe entityNot required to know where it gets its data fromFrom a WCF service. WCF RIA Services, etcMay contain validation

11. ViewMVVMThe screen, the UI, the UserControl in SilverlightHandles UI look and feelPresentation of informationCommunicates with ViewModel through bindings

12. ViewModelMVVMConhecido por PresenterModelMain source of logic for the MVVM triadConnects the Model to the ViewAbstracts the ViewPublic properties that are bound to a ViewINotifyPropertyChanged and INotifyCollectionChanged talk to the View through bindingsListens for changes from the View through bindingsInvokes services to communicate outside the MVVM triad

13. MVVMDEMO!!!!DEMO!!!DEMO!!DEMO!

14. ReferênciasJohn Papa - http://johnpapa.net/http://www.galasoft.ch/mvvm/getstarted/http://msdn.microsoft.com/en-us/magazine/dd419663.aspxhttp://virtualdreams.com.br