The object could not be added or attached because its EntityReference has an EntityKey property value that does not match the EntityKey for this object.
The object at index {0} in the specified collection of objects is not attached to the same ObjectContext as source object ...
The object cannot be added to the object context. The object's EntityKey has an ObjectStateEntry that indicates that the ...
The object cannot be attached because it is already in the object context. An object can only be reattached when it is in ...
The object cannot be attached because the value of a property that is a part of the EntityKey does not match the corresponding ...
The object could not be added or attached because its EntityReference has an EntityKey property value that does not match ...
The object could not be added to the bound collection. The specific EntitySet for the object of type '{0}' could not be determined. ...
The object could not be added to the EntityCollection or EntityReference. An object that is attached to an ObjectContext ...
The object could not be removed from the EntityCollection or EntityReference. An object that is attached to an ObjectContext ...
The object graph contains multiple references to an instance of type '{0}' and the serializer cannot find a commonly visible ...