Basics of Silverlight 2
- 1. The Basics - II
- 2. Silverlight and JS Demo MVVM Binding Change Notification • INotifyPropertyChanged • Dependency Properties • ObservableCollection XAML Silverlight and Web Services RIA Services Demos
- 5. Model – Domain Object • Actual Data • Holds information, not behavior or services that manipulate the information View Model – converter between View and Model View – Presentation
- 6. Separation between View and ViewModel Test driven development Better data binding - two way data-binding possible ViewModel can aggregate parts of model present in separate classes
- 7. One Way • GUI element is updated whenever the object to which element is bound is updated Two Way • GUI element is updated whenever the object to which element is bound is updated. Also, object is updated whenever GUI changes. One Time • The object to which the UI element is bound can change the value of GUI element only once.
- 9. Dependency Properties Button 1 Shared Default Value Button 2 Grid.Column = 0 Button 3 Instance Specific Value Button 4 Grid.Column = 1
- 12. Separating Design from Development Portability between Web and Windows • Logical Tree – XAML as is • Visual Tree – representation of actual code Every element of visual tree is a dependency property
- 13. Demo
- 14. Demo
- 15. Simplifies development of N-tier RIA No need to focus on service plumbing Client is automatically updated with latest logic every time the solution is re-compiled
- 16. Demo