When is x:Reference in WPF resolved and why does XAML element order affect it?

Question

x:Reference can not be resolved after I re-arrange elements in XAML.

Here I present a working code. Just move the DataGrid element so it comes after the button eleme

Answer 1

I suppose it is because your resources(Window.Resources) will be created first, before referenced instance exists. I would try to solve this through DataContext (ViewModel).