When should I use dependency properties in WPF?

Question

When should I use dependency properties in WPF?

They are static, so we save a lot on memory, compared to using .NET properties. Other gains of using dependency prope

Answer 1

Dependency properties are used when you want data binding in a UserControl, and is the standard method of data binding for the WPF Framework controls. DPs have slightly better binding performance, and everything is provided to you when inside a UserControl to implement them.

Otherwise, you typically use INotifyPropertyChanged for binding elsewhere, since it's easier to implement in stand-alone classes and has less overhead. As far as your original assumptions:

1. There is a local instance of your variable, you definitely do not save any overhead over a property since there is significant data binding logic built-in.
2. They must be accessed on the main thread.