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Asked: 2026-05-24T10:02:55+00:00

I have several tables whose relationships are based upon unique key constraints. A quick

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I have several tables whose relationships are based upon unique key constraints.

A quick example is:

VersionId, VersionName
SurveyId, SurveyName, VersionId
QuestionId, QuestionName, SurveyId, VersionId

EF doesn’t currently support relationships based upon unique key constraints. In my index view for question what’s the best way handle the join to survey to show the grid of questions with survey name with respect to a model?

Do I need an anonymous type? db.Questions.Include(“Surveys”) doesn’t seem to do anything. I could use linq and make a ViewModel of the joined tables (I suspect this is the way to go), but there are so many things in EF & MVC that I thought I’d check before doing anything.

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1 Answer

  1. Editorial Team

    Why do you have a link to Version (i.e. VersionID) in both your survey table and your question table? Couldn’t you reach the version from the question through the survey?

    Also, if you have the relationship between Question and Survey is many-to-one or one-to-one (each question only has one survey) then it should be db.Questions.Include("Survey") – non-plural.

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