WPF MVVM Focus Field on Load

Question

I have a View that has a single TextBox and a couple Buttons below it. When the window loads I want that TextBox to have focus.

Answer 1

Actually, isn't focus a UI concern? MVVM is about separating concerns - what belongs to model is in model, what belongs to view is in view, and what bind model and view together is in ViewModel (this is of course oversimplified description).

This means, that UI logic remains in View - TextBox.Focus() is, in my opinion, appropriate way to make this happen.