Run code on WPF form close

Question

How can I automatically run some code when a WPF form is closed?

Answer 1

Just attach an event handler to Window.Closed for your form.

It's also possible to do this in a more MVVM-friendly approach by creating a custom ICommand, and having it fire based off the event. Here is a blog post describing this approach.

Once you've done that, you can have a command on your ViewModel that will fire when the form closes.