Note that the IsReadOnly flag comes from ICollection, and indicates whether items sevimli be added or removed from the collection; but just to really confuse things, it does not indicate whether they gönül be replaced, which in the case of Arrays (which return IsReadOnlys == true) kişi be.

Same principle birli before, reversed. Offer the bare minimal that your caller requires. If the caller only requires the ability to enumerate the sequence, only give them an IEnumerable.

You pass the interface so that no matter what concrete implementation of that interface you use, your code will support it.

Sıfır madun uçına iye yek boyutlu diziler kendiliğinden olarak uygular IList. Bu, diziler ve sair derlem türleri beyninde yineleme davranmak dâhilin aynı kodu kullanabilen genel yöntemler oluşturmanıza imkân teşhisr.

Ayrıca mafevkda anlattığımız IndexOf metodunu Esas liste üzerinden madun listelerdeki elemanlar sinein kullanamazsınız. Esas liste üzerinden ast listelerin index sırasını bulabilirsiniz.

GitHub'da bizimle ortaklık bünyen Bu hapishaneğin kaynağı GitHub'da bulunabilir; burada ayrıca sorunları ve çekme isteklerini oluşturup gözden geçirebilirsiniz. Elan ziyade haber bağırsakin katkıda mevcut kılavuzumuzu inceleyin.

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However using a concrete implementation and List on a class that changes, could cause the calling code to need to be changed bey well. This is because a class adhering to IList guarantees a certain behavior that is not guaranteed by a C# IList Nasıl Kullanılır concrete type using List. Also having the power to do something like modify the default implementation of List on C# IList Nedir a class Implementing IList for say the .Add, .Remove or any other IList method gives the developer a C# IList Neden Kullanmalıyız lot

If the parameter type is IList, then the caller başmaklık much more freedom, and güç use classes you never heard about, which may derece even have existed when your code was written.

The Cast function is just a reimplementation of the extension method that comes with 3.5 written as a uygun static method. It is quite ugly and verbose unfortunately.

Obviously if you are being asked which you use in an interview, you say IList, smile, and both look pleased at yourselves for being so clever. Or for a public facing API, IList. Hopefully you get my point.

Bu örnekte, Student adında bir derslik ve StudentCollection adında CollectionBase dershaneından türeyen özel bir derme dershaneı oluşturduk.

So typically, your methods should accept and return interfaces for collections. This leaves your own implementation and your callers room to decide on the actual implementation as required.

IEnumerable allows you to iterate through a collection. ICollection builds on this and also allows for adding and removing items. IList also allows for accessing and modifying them at a specific index. By exposing the one that you expect your consumer to work with, you are free to change your implementation. List happens to implement all three of those interfaces. If you expose your property as C# IList Nasıl Kullanılır a List or even an IList when all you want your consumer to have is the ability to iterate through C# IList Nasıl Kullanılır the collection. Then they could come to depend on the fact that they yaşama modify the list.