A referential integrity constraint violation occurred

Question

I\'m trying to update an existing entity.

I have the following code:

public MamConfiguration_V1 Save(MamConfiguration_V1 item)
{
    mMaMDBEntities.M         


        

Answer 1

The issue for me was that entity framework had loaded my object in multiple places, so when I updated a foreign key, there were now two references to the same object, one with a foreign key pointing to record a and one with a foreign key pointing to record b, which caused an error since my relationship is one to one. To resolve it, I used context.Entry(Object).State = EntityState.Detached, reloaded the object, made the foreign key change and then saved my changes