Getting exact error type in from DbValidationException

Question

I have the situation where I\'m initializing my model in DatabaseInitializer() for EF 4.1 and get this annoying error \"Validation failed for one or more entities. See

Answer 1

I found it useful to create a SaveChanges wrapper which makes the EntityValidationErrors more readable:

Public Sub SaveChanges(entities As Entities)

    Try
        entities.SaveChanges()

    Catch ex As DbEntityValidationException

        Dim msg As New StringBuilder
        msg.AppendLine(ex.Message)

        For Each vr As DbEntityValidationResult In ex.EntityValidationErrors
            For Each ve As DbValidationError In vr.ValidationErrors
                msg.AppendLine(String.Format("{0}: {1}", ve.PropertyName, ve.ErrorMessage))
            Next
        Next

        Throw New DbEntityValidationException(msg.ToString, ex.EntityValidationErrors, ex)

    End Try

End Sub

and then changed 'entities.SaveChanges()' to 'SaveChanges(entities)' in my entire project