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Asked: 2026-05-16T05:33:01+00:00

I’ve read various things but I didn’t see something specific, so I’m reposting. Sorry

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I’ve read various things but I didn’t see something specific, so I’m reposting. Sorry if I missed one and duplicate posted.

I am storing files in a database; previously, with ADO.NET Entity Framework, I would use image type and it streams it as byte[] array.

Is that the approach to do it in NHibernate with FluentNHibernate mappings? I setup the column as image. I defined this as the mapping for the property (which the C# property is a byte[] array):

Map(i => i.FileContents).CustomSqlType("image");

Is that the correct way to set this up? I am getting an error and am not sure if its related to this?

Thanks.

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  1. Editorial Team

    You can also map Custom<TType>s to NHibernate.Type types

    For instance:

    Map(i => i.FileContents).Custom<NHibernate.Type.BinaryBlobType>();

    I’ve mapped files stored as binary, but they weren’t the ‘image’ type.

    I did a quick google search and found a post with an ImageUserType which you could try to specify instead.
    http://weblogs.asp.net/ricardoperes/archive/2009/09/17/nhibernate-image-user-type.aspx

    edit. This user type looks a lot better: http://www.martinwilley.com/net/code/nhibernate/usertype.html

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