Gets a value that indicates whether all related objects have been loaded.
Assembly: System.Data.Entity (in System.Data.Entity.dll)
Calling the Load method sets the flag to true.
An EntityCollection<TEntity> or EntityReference<TEntity> may also be loaded if the related end is included in the query path. For more information about span, see Shaping Query Results (Entity Framework).
When an object is detached, the flag is changed from false to true.
To guarantee that a related end is fully loaded before doing processing, you should check whether is false. If is false, you should call the Load method.