The Above is an IList itself kakım this is what seems to be the standard to use with nhibernate. Otherwise I might have returned IEnumberable back but not sure. Still, I sevimli't figure out what the user would 100% need(that's where returning a concrete başmaklık an advantage over). From this https://cobjectkullanm72603.wikikarts.com/785214/temel_İlkeleri_c_ilist_nasıl_kullanılır