Access foreign key not updating
Original Object and then explore any Foreign Key field, the Entity Set is empty - the corresponding private property's Entity property is Nothing...
Stranger still, an update (changing a foreign key column) works perfectly fine, even though it never shows up.
I can only assume that FKs are updated directly by setting the key value?
Background: I'm trying to build my own Many-to-Many for L2S, and it seems that the updating/inserting event is the only place where I can change the relationships without running into a massive amount of problems.
Regards, Heikki ----- Original Message ----- From: "Jeremiah Jacks" Sent: Tuesday, July 29, 2003 AM Subject: RE: Error with foreign key constraint when updating Oh sorry... [email protected]] Sent: Monday, July 28, 2003 AM To: [email protected] Subject: Re: Error with foreign key constraint when updating Jeremiah, you are inserting in the database 'tamiyausa' to the table 'product_access_level'. I am suspecting you printed these from wrong databases.
There are 4 tables and below are the SQL statements that create the Database. When I go to Access the tables look great and I do not get any error messages. NET Framework version 4, you can expose foreign key properties on entity types and define relationships through foreign keys.The Include foreign key columns in the model option in the Entity Data Model Wizard is selected by default.When you include foreign key properties, you can still modify a relationship by updating the reference to the principal object on the dependent or adding a dependent object to a collection on the principal object.A common way to access references and collections on entities is through navigation properties. The Entity Framework tries to keep references, collections, and foreign key properties in sync.