Any example of Dependency Property in ViewModel?

Question

Can someone give example of Dependency Property in ViewModel in WPF passed as datacontext to view. Will this require inheriting from DependencyObject? Lets say I want ListBox

Answer 1

In order to define a DependencyProperty in your view model, your view model class must derive from DependencyObject. Otherwise the DependencyProperty won't work right.

Do you really need the property to be a DependencyPropety? Have you looked into implementing INotifyPropertyChanged instead?

Answer 2

Although you can implement a ViewModel as a DependencyObject with dependency properties, most people agree that it's better to use a POCO object implementing INotifyPropertyChanged... Have a look at this article by Kent Boogaart for a detailed comparison between the two approaches. There's also a SO question about this