Chapter 11, Exploring Advanced Topics

1. To modify the appearance of a control based on its state, such as whether or not it has the focus.
2. In the XAML, add a DataTemplateSelector to indicate the potential templates and then add a class that derives from DataTemplateSelector that overrides OnSelectTemplate and returns DataTemplate to be displayed.
3. We have seen the EventToCommand behavior, which allows you to add commands to controls that only have events, allowing you to handle the event/command in ViewModel.
4. You add setters with the property to change and the value to set it to.