Note That the IsReadOnly flag comes from ICollection, and indicates whether items gönül be added or removed from the collection; but just to really confuse things, it does hamiş indicate whether they kişi be replaced, which in the case of Arrays (which return IsReadOnlys == true) güç be. From this https://c-object-kullan-m09528.activablog.com/27682112/c-ilist-neden-kullanmalıyız-için-5-İkinci-trick