发生参照完整性约束违规

Question

I am getting the following error when calling context.Set<Person>().Attach(person); on EF 5.0

A referential integrity constraint violation occurred: The property values that define the referential constraints are not consistent between principal and dependent objects in the relationship.

Is there some way to figure out which exact property is generating this error?

I know what the cause is, that a foreign key which is directly a property of an object is different from the related object's primary key, so for example:

Person --> Address
ID         PersonID
           Person

and Address.PersonID isn't the same as Address.Person.PersonID , but no matter where I look at my real life object I am not getting which property is causing this.

So is there some way to get to the root of the problem, maybe stepping through the ObjectStateManager or some ChangeTracking routine?

I have already written a t4 template file (to autogenerate it based on my entitymodel) that checks every ForeignKey/PrimaryKey, and I just cannot find a difference.

Answer 1

Multi ForeignKey ruined my day...

So to complete my sample above it was like;

Person --> Address
ID         PersonID
ID2        PersonID2
           Person

And I didnt check the ID2 of my objects, which was loaded incorrectly.