Set ListBoxItem.IsSelected when child TextBox is Focused

Question

I have a typical MVVM scenario: I have a ListBox that is binded to a List of StepsViewModels. I define a DataTemplate so that StepViewModels are rendered as StepViews. The

Answer 1

As Jordan0Day correctly pointed out there can be indeed big problems using IsKeyboardFocusWithin solution. In my case a Button in a Toolbar which regards to the ListBox was also not working anymore. The same problem with focus. When clicking the button the ListBoxItem does loose the Focus and the Button updated its CanExecute method, which resulted in disabling the button just a moment before the button click command should be executed.

For me a much better solution was to use a ItemContainerStyle EventSetter as described in this post: ListboxItem selection when the controls inside are used

XAML:

EventHandler in the code behind of the view:

private void OnListBoxItemContainerFocused(object sender, RoutedEventArgs e)
{
    (sender as ListBoxItem).IsSelected = true;
}