5 Basit Teknikleri için C# IList Nedir

5 Basit Teknikleri için C# IList Nedir

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driisdriis 163k4545 gold badges268268 silver badges343343 bronze badges 3 Sorry, but even now there are plenty of uses for library code to use IList (non-generic). Anyone who says otherwise hasn't suffered enough reflection / veri-binding / etc ;)

What US checks and balances prevent the FBI from raiding politicians unfavorable to the federal government?

Edit: You do need to be quick to get answers in here. Bey I presented a slightly different syntax to the other answers, I will leave my answer - however, the other answers presented are equally valid.

All concepts are basically stated in most of the answers above regarding why use interface over concrete implementations.

IList is a interface and doesn't have any implementation, so the performance of IList depending the class it implements

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GitHub'da bizimle ortaklaşa iş dokuman Bu gönülğin kaynağı GitHub'da bulunabilir; burada hatta problemlerı ve çekme isteklerini oluşturup gözden geçirebilirsiniz. Henüz bir araba selen dâhilin katkıda kâin kılavuzumuzu inceleyin.

You kişi look at this argument from several angles including the one of a purely OO approach which says to program against an Interface not an implementation. With this thought, using IList follows the same principal kakım passing around and using Interfaces that you define from scratch. I also believe in the scalability and flexibility factors provided by an Interface in general. If a class implmenting IList needs to be extended or changed, the consuming code does not have to C# IList Nasıl Kullanılır change; it knows what the IList Interface contract adheres to.

In most cases, if you are using a List and you think you could use a narrower interface instead - why hamiş IEnumerable? This is often a better fit if you don't C# IList Nedir need to add items. If you need to add to the collection, use the concrete type, List.

Then later if you decide to convert the actual veri store from a List C# IList Neden Kullanmalıyız to a Dictionary and expose the dictionary keys bey the actual value for the property (I have had to do exactly this before). Then consumers who have come to expect that their changes will be reflected inside of your class will no C# IList Nasıl Kullanılır longer have that capability. That's a big mesele! If you expose the List kakım an IEnumerable you yaşama comfortably predict that your collection is hamiş being modified externally. That is one of the powers of exposing List bey any of the above interfaces.

IList is not a class; it's an interface that classes birey implement. The interface itself is just a contract between the consumer of the class and the class itself. This line of code will work:

Bu örnekte, Student adında bir derslik ve StudentCollection isminde CollectionBase klasından türeyen özel bir koleksiyon dershaneı oluşturduk.

When talking about return types, the more specific you are, the more flexible callers güç be with it.

For instance, if you return an IEnumerable, then you are limiting them to iterating -- they gönül't add or remove items from your object, C# IList Nerelerde Kullanılıyor they yaşama only act against the objects. If you need to expose a collection outside of a class, but don't want to let the caller change the collection, this is one way of doing it. On the other hand, if you are returning an empty collection that you expect/want them to populate, then an IEnumerable is unsuitable.