Tag Archives: entityframework

Duplicate Key Exception

Posted on October 17, 2013 by david

Entity Framework throws exceptions from the DbContext’s SaveChanges method if there is a constraint violation in the database. If you have a property marked as invariant w.r.t. concurrency, that too will raise an exception at this point (a DbUpdateConcurrencyException Exception. … Continue reading →

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Glimpse

Posted on October 14, 2013 by david

That turned out to be a profitable search. A bug that suggested that there was a routing configuration issue in a .Net MVC app. I was looking for a way to troubleshoot the issue and I came across this: Glimpse … Continue reading →

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EntityFramework DbContext Template Namespaces

Posted on October 12, 2012 by david

I seem to be seeing something odd in EF. I have a working project that has a data model (.edmx) that was built from the database, with code generated using the DbContext template. The object model was then edited (introduction of inheritance, … Continue reading →

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