Wednesday, May 28, 2014

Add ID value for non-auto-increament field under Entity Framework

If you use an “ID” field in your entity, & this “ID” field is not auto-increament, Entity Framework will fail when generate insert sql.


Add a DatabaseGeneratedAttribute to this “ID” field, with DatabaseGeneratedOption.None option, like this:

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

Successfully solved under Entity Framework 4-6.

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