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If any changes have made on the datatype or constraints(e.g. not null - null) of a particular column in table and performing Update model from database (Refresh a particular table) in entity framework is not updating the entity model.

Each time I have to delete and re-create the table manually.

Is this only solution? or any other best way to do this?

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  • are you using migrations? Commented Mar 13, 2014 at 8:21

2 Answers 2

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delete the applicable table(s) from your model, than select Update model from database, EF usually only checks for new fields, not changes to existing fields.

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4 Comments

This answer is probably correct for most cases of this error.
What if I add a new table in database? Then your solution will not work!
@MahmoodJenami did you test this before you made this comment? can you say with 100% certainty that my solution will not work?
Yeah, That was exactly my case.
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Check if the new updated/created table in the database contains an identity key column (like an ID column). Entity Framework is especially sensitive when working with tables that don't represent uniqueness in their records.

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