Does Entity Framework 5 support unique constraints?

Question

Wondering if Entity Framework 5 supports unique constraints on entity properties? If so, how can I specify that a property should be unique?

Answer 1

Well i was looking for solution and finally i found it. when you generate migration in code you can create unique key

 CreateTable(
                "dbo.TaBLE",
                c => new
                    {
                        Id = c.Int(nullable: false, identity: true),
                        Date = c.DateTime(nullable: false),
                        Meter_Id = c.Int(),
                    })
                .PrimaryKey(t => t.Id)

                .Index(t => new {t.Meter_Id, t.Date}, true);

Validation before insert you can do on BLL level, so i think it can solve your problem.