cannot update identity column in Entity Framework Core

Question

I\'ve added a separate Identification to the AspNetUsers table called NumericId that will serve along with the GUID like ID that ASP has for default.

I\'ve added the

Answer 1

This was a bug with EF Core 1.0. See EF trying to Insert into Identity field.

EF Core 1.2 has marked the issue as fixed, but the workaround without updating is to use

modelBuilder.Entity().Property(u => u.Property).UseSqlServerIdentityColumn();