Implement the ICommand interface to replace event handlers on your XAML-based applications and add parameters to the execution.
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Watch the Introduction to MVVM: https://www.youtube.com/watch?v=k77dqVVWgB8
Watch the implementation of the INotifyPropertyChanged interface: https://www.youtube.com/watch?v=7LKiYpmHxhc
Watch the implementation of the ICommand interface: http://youtu.be/fOookEq5od0
Watch the implementation of the IValueConverter interface: http://youtu.be/wTecEb5WlYs
Watch the use of the ObservableCollection class, which implements the INotifyCollectionChanged interface: http://youtu.be/PhaCUtDw8n8
