Note That, if your API is only going to be used in foreach loops, etc, then you might want to consider just exposing IEnumerable instead. IList is an interface so you hayat inherit another class and still implement IList while inheriting List prevents you to do so. Diyelim ki formunuzdaki https://rylanoaiqy.scrappingwiki.com/782856/you_should_know_c_ilist_nasıl_kullanılır_göstergeleri