In this video tutorial, Victor Gaudioso demonstrates how to create Implicit Styles in Silverlight 5.
Source: Victor's Silverlight Blog
In this video I show you how to:
1. Create a custom DataType called Developer.
2. How to create an ObservableCollection of Developers and then turn that into a DataSource.
3. How to bind that DataSource to a ListBox and define a DataTemplate that describes how to show the data (namely a TextBlock for the name and an Image for a picture of the developer).
4. How to remove that DataTemplate and add it to App.xaml and define a new property called a DataType.