An EntityReference<(Of <(TEntity>)>) object is returned by a navigation property when the related end has a multiplicity of zero or one. For more information, see Navigation Properties (EDM).
An EntityReference<(Of <(TEntity>)>) object might have a corresponding EntityCollection<(Of <(TEntity>)>) (one-to-many relationship) or EntityReference<(Of <(TEntity>)>) (one-to-one relationship) at the other end of the relationship. When an EntityReference<(Of <(TEntity>)>) and an EntityCollection<(Of <(TEntity>)>) model opposing ends of the same relationship, the integrity of the relationship is maintained at the object level.
This class cannot be inherited.