Entity Framework Code First - Cannot insert duplicate key in object 'db'

Question

I\'m using the new EF code first to one project of mine, and i\'m getting a weird error, my mode is:

abstract class Member
{
   public virtual int MemberId;
  ..         


        

Answer 1

I just came across this. Like the marked answer states, TPC doesn't set the key to an identity. So you can use an annotation for it:

[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int ID { get; set; }