How to make composite unique key in ASP.NET Boilerplate?

Question

I have a table which has the Id as primary key, I want to have a composite unique key on Code and Value column. I\'m trying in this way.

Answer 1

Adding solution for others.

Don't modify anything just add the below line

modelBuilder.Entity(b =>
        {
            b.HasIndex(e => new { e.Code, e.Value}).IsUnique();
        });