C# IList Neden Kullanmalıyız Seçenekler

C# IList Neden Kullanmalıyız Seçenekler

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I know there has been a lot of posts on this but it still confuses me why should you pass in an interface like IList and return an interface like IList back instead of the concrete list.

Kötüdaki şekilde Kisi isminde oluşturduğumuz klası oluşturduğumuz liste nesnesine ekleyelim.

Say I have a function that returns IEnumerable, inside the function I may use a List for an internal backing store to generate my collection, but I only want callers to enumerate it's contents, hamiş add or remove. Accepting an interface kakım a parameter communicates a similar message "I need a collection of strings, don't worry though, I won't change it."

Bearing this in mind, it makes most sense to pass types with the least number of external dependencies possible and to return the same. However, this could be different depending on the visibility of your methods and their signatures.

Basically, I need to see some actual code examples of how using IList would have solved some problem over just taking List into everything.

List is a specific implementation of IList, which is a container that yaşama be addressed the same way bey a linear array T[] using an integer index. When you specify IList bey the type of the method's argument, you only specify that you need certain capabilities of the container. For example, the interface specification does derece enforce a specific data structure to be used.

Bu site, istenmeyenleri azaltmak muhtevain Akismet kullanıyor. Tefsir verilerinizin nasıl aksiyonlendiği hakkında daha bir araba haber edinin.

Don't you know in advance if your method needs a list that birey C# IList Nasıl Kullanılır take additional members; don't you specify that in the method signature? What exactly were you going to do if you were passed a read only list like int[]?

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

The Cast function is just a reimplementation of the extension method that comes with C# IList Nerelerde Kullanılıyor 3.5 written kakım a alışılagelen static method. It is quite ugly and verbose unfortunately.

Bir sonraki elementin varlığını sınayan MoveNext ve meri elementi veren GetCurrent metodlarına sahiptir.

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Dizin aracılığıyla C# IList Nedir erişilebilen nesnelerin kesin olarak belirlenmiş bir listesini temaşa değer. Listeleri taharri, sıralama ve işleme yöntemleri sağlamlar.

This works, because only the outer list is created C# IList Kullanımı in the first place. You sevimli then insert individual items that are compatible with IList: