EF5 get hierarchy data self-reference by predicate does not work right.

I want to retrieve self-reference data by this method :

public IEnumerable<TEntity> GetAllHierarchy(string navigationPropertyPath, Expression<Func<TEntity, bool>> predicate) { return _entities.Include(navigationPropertyPath).Where(predicate); }

When I use GetAllHierarchy("Children", x => x.ParenetId == null) data retrived by 2 level Children. When I call the method without predicate data successfully loaded but I don’t need data with ParentId

This method worked in the EF6 well but in EF5 not working right.

[smitpatel]

@FakeOwner - Include API only loads exactly one level of navigation property. For tracking queries, EF Core performs identity resolution and fix-up navigations between loaded data. Because of this you are seeing above results. EF Core is not loading hierarchy. If you want to load Children collection n-level deep, you have to use Include/ThenInclude n times.

Also afaik, the query worked same way in EF6 also. If you believe otherwise then as @ajcvickers said above, provide a complete runnable repro which shows what you are seeing.

[ajcvickers]

Please attach a small, runnable project or post a small, runnable code listing that reproduces what you are seeing so that we can investigate.