How to determine if Navigation Property in the Entity Framework is set without loading the related records

Question

I\'m not sure about Navigational Properties in EF 4 so I would kindly ask you an explanation.

Lets imagine this scenarios:

A)

I have two Entities

Answer 1

Do you mean:

// -to-one relationship
entity.RelatedItemReference.IsLoaded

// -to-many relationship
entity.RelatedItems.IsLoaded