EF代码优先-身份始终处于启用状态

Question

I am using Code first and my ID column looks like this:

    [Key]
    [Required]
    public int ID { get; set; }

Am trying to cancel the identity of some tables and cannot do it. I am using Fluent API:

.Property(b => b.ID).HasDatabaseGeneratedOption(DatabaseGeneratedOption.None); 

and the generated code is of migration is:

     public override void Up()
     {
            AlterColumn("MyEntity", "ID", c => c.Int(nullable: false, 
             identity: false));
     }

     public override void Down()
     {
            AlterColumn("MyEntity", "ID", c => c.Int(nullable: false, 
            identity: true));
    }

But it doesn't change in the db. Any ideas please?

Answer 1

you can do it using data annotations.

[DatabaseGenerated(DatabaseGeneratedOption.None)]
public int ID { get; set; }