Subscription to ChangeTracker.StateChanged events

Can you please advise how to subscribe to ChangeTracker.StateChanged events but keep reverse engineering automatic-generated DbContext file intact?

This works in the original file:

public partial class MyContext : DbContext
{
    public MyContext(DbContextOptions<MyContext> options)
        : base(options)
    {
        ChangeTracker.StateChanged += OnEntityStateChanged;
    }

This doesn’t work in a separate file:

public partial class MyContext
{
    public MyContext() : base()
    {
        ChangeTracker.StateChanged += OnEntityStateChanged;
    }

Or maybe you can advise a way how to subscribe to events outside from default DbContext constructor. So little information how to use it, and most SO posts suggest to put subscription into default constructor.

[ErikEJ]

Then you can use the t4 template to modify the constructor

[ErikEJ]

Cool, let me know if you need additional advice