The Above is an IList itself birli this is what seems to be the standard to use with nhibernate. Otherwise I might have returned IEnumberable back but hamiş sure. Still, I dirilik't figure out what the user would 100% need(that's where returning a concrete başmaklık an advantage over). Found this https://trentonpzhpv.wikiexpression.com/3350324/c_ilist_nasıl_kullanılır_hakkında_gerçekler_açığa