Can I store enums as strings in EF 5?

Question

We have been using EF CF for a while in our solution. Big fans! Up to this point, we\'ve been using a hack to support enums (creating an extra field on the model; ignore the

Answer 1

I hit this problem a few weeks ago. The best I could come up with is a bit hacky.

I have a Gender enum on the class Person, and I use data annotations to map the string to the database and ignore the enum.

public class Person
{
    public int PersonID { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }

    [Column("Gender")]
    public string GenderString
    {
        get { return Gender.ToString(); }
        private set { Gender = value.ParseEnum<Gender>(); }
    }

    [NotMapped]
    public Gender Gender { get; set; }
}

And the extension method to get the correct enum from the string.

public static class StringExtensions
{
    public static T ParseEnum<T>(this string value)
    {
        return (T)Enum.Parse(typeof(T), value, true);
    }
}

See this post for full details - http://nodogmablog.bryanhogan.net/2014/11/saving-enums-as-strings-with-entity-framework/

Answer 2

This is currently not possible. Enum in EF has same limitations as enums in CLR - they are just named set of integer values. Check this article for confirmation:

The EF enum type definitions live in conceptual layer. Similarly to CLR enums the EF enums have underlying type which is one of Edm.SByte, Edm.Byte, Edm.Int16, Edm.Int32 or Edm.Int64 with Edm.Int32 being the default underlying type if none has been specified.

I posted article and related suggestion about this problem. If you want to see this feature in the future please vote for the suggestion.