Good or bad practice for Dialogs in wpf with MVVM?

Question

I lately had the problem of creating add and edit dialogs for my wpf app.

All I want to do in my code was something like this. (I mostly use viewmodel first approach

Answer 1

I've been using an almost identical approach for several months now, and I'm very happy with it (i.e. I haven't yet felt the urge to rewrite it completely...)

In my implementation, I use a IDialogViewModel that exposes things such as the title, the standad buttons to show (in order to have a consistent apparence across all dialogs), a RequestClose event, and a few other things to be able to control the window size and behavior