Specify datacontext type on listbox ItemContainer in style

Question

In a ListBox I have a ItemContainer\'s IsSelected property bound to my ViewModel\'s IsSelected property using

Answer 1

Specifying d:DataContext="{d:DesignInstance nmspc:Clz}" with other attributes of Style tag didn't help me: R# / IntelliSense really stopped highlighting properties I was binding to but the designer also showed me an error message instead of the view.

The trick I found out is to specify inside the Style tag. And it appeared to be so universal that it answers another question, about using interfaces as d:DataContext.

Here is my answer to that question with a small example: https://stackoverflow.com/a/46637478/5598194