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Editorial Team
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Asked: 2026-05-14T21:07:29+00:00

In VS 2008, I have a simple .csproj that contains an Entity Framework .edmx

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In VS 2008, I have a simple .csproj that contains an Entity Framework .edmx (V1) file. Every time I build the project, the output DLL is updated, even though nothing has changed. I have reproduced this in the simplest-possible project (containing one ordinary .cs file and one edmx model). If I remove the edmx model and build repeatedly, the output assembly will not be touched. If I add the edmx model and build repeatedly, the output assembly is modified each time. This is a problem because the real project is a dependency of dozens of other projects and it is wreaking havoc with what times when working in higher layers of the application. Is this a known problem? Any way to fix it?

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  1. Editorial Team

    Okay, I found this little gem on a Microsoft EF blog:

    Incremental Build We used to re-deploy
    EDMX files (if any of the files were
    set to produced embedded output
    resources) regardless of whether
    anything had changed in the model.
    This unnecessarily initiated other
    build actions, and for some large
    projects, these extra build actions
    could take some time. In VS 2010, we
    updated our EntityDeploy build task to
    only deploy when the model has
    changed.

    At least it’s fixed in EF4…

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