DevForce Community Forum : Nullable Enum not supported ?

DevForce Community Forum : Nullable Enum not supported ? http://www.ideablade.com/forum/ This is an XML content feed of; DevForce Community Forum : DevForce 2012 : Nullable Enum not supported ? Sat, 11 Apr 2026 02:39:28 -700 Thu, 17 Jan 2013 11:45:45 -700 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.69 360 www.ideablade.com/forum/RSS_post_feed.asp?TID=3897 DevForce Community Forum http://www.ideablade.com/forum/forum_images/IdeaBlade_logo_tm.png http://www.ideablade.com/forum/ Nullable Enum not supported ? : thank you, I can wait till the... http://www.ideablade.com/forum/forum_posts.asp?TID=3897&PID=15619#15619 Author: kdev
Subject: 3897
Posted: 17-Jan-2013 at 11:45am

thank you, I can wait till the fix]]> Thu, 17 Jan 2013 11:45:45 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3897&PID=15619#15619 Nullable Enum not supported ? : Hmm, this does look like a... http://www.ideablade.com/forum/forum_posts.asp?TID=3897&PID=15618#15618 Author: kimj
Subject: 3897
Posted: 17-Jan-2013 at 11:20am

Hmm, this does look like a DevForce bug. The nullable enums work from an EDMX-based model, but not in Code First. I can't think of a workaround, but we'll get this fixed in the next release.]]> Thu, 17 Jan 2013 11:20:16 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3897&PID=15618#15618 Nullable Enum not supported ? : Here you go : public enum EtatEnum { ... http://www.ideablade.com/forum/forum_posts.asp?TID=3897&PID=15617#15617 Author: kdev
Subject: 3897
Posted: 17-Jan-2013 at 11:08am

Here you go :

    [DataContract]
    public enum EtatEnum
    {
        [EnumMember]
        Waiting=1,
        [EnumMember]
        Validated = 2,
        [EnumMember]
        Sent = 3,
    }

    [DataContract(IsReference = true)]
    public class Purchase : PurchaseBase
    {
        ...

        [DataMember]
        public EtatEnum? Etat { get; set; }

        ...
    }

]]> Thu, 17 Jan 2013 11:08:41 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3897&PID=15617#15617 Nullable Enum not supported ? : DevForce does support nullable... http://www.ideablade.com/forum/forum_posts.asp?TID=3897&PID=15616#15616 Author: kimj
Subject: 3897
Posted: 17-Jan-2013 at 11:00am

DevForce does support nullable enum properties, so I don't know what might be going wrong. Can you post a snippet showing your enum type and how the entity property is defined?]]> Thu, 17 Jan 2013 11:00:17 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3897&PID=15616#15616 Nullable Enum not supported ? : Hi,With EntityFramework, I can... http://www.ideablade.com/forum/forum_posts.asp?TID=3897&PID=15612#15612 Author: kdev
Subject: 3897
Posted: 17-Jan-2013 at 12:46am

Hi,

With EntityFramework, I can use in code first a Nullable Enum Property. The migration works well.

With Devforce this same nullable Enum property raise an exception during the build :

C:\Dev\packages\IdeaBlade.DevForce.Aop.7.0.3\tools\IdeaBlade.DevForce.Common.targets(61,5): error : An error occurred during metadata generation and a metadata file could not be created. Error: The value cannot be null.

if I change to a no nullable property it works.

Is this a limitation of DF or a bug ? Is there a workaround ?

]]> Thu, 17 Jan 2013 00:46:37 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3897&PID=15612#15612