Benim C# IList Nasıl Kullanılır Başlarken Çalışmak

Benim C# IList Nasıl Kullanılır Başlarken Çalışmak

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How to refer to the locations in lower depths of a waterbody (such kakım a lake)? more hot questions

C# List ciğerindeki verileri yazdırmak karınin aşağıdaki iki döngüden biri kullanılarak değerleri ekrana yazdırma fiillemi örgülabilir.

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, not add or remove. Accepting an interface birli a parameter communicates a similar message "I need a collection of strings, don't worry though, I won't change it."

It's more nuanced than that. If you are returning an IList kakım part of the public interface to your library, you leave yourself interesting options to perhaps make a custom list in the future.

Safi 4.6 (and it will likely be caught by the compiler). But there yaşama be more insidious cases, such kakım passing a C# array birli a IList. I am derece sure everyone is aware arrays implement IList, which means support for Add should not be assumed.

IList on the other hand is an Interface. Basically, if you want to create your own custom List, say a list class called BookList, then you can use the Interface to give you basic methods and C# IList Neden Kullanmalıyız structure to your new class. IList is for when you want to create your own, special sub-class that implements List.

The cost to do this is minimal, why derece save yourself the headache later? It's what the interface principle is all about.

If you specify your methods to return an C# IList Nedir interface that means you are free to change the exact implementation later on without the consuming method ever knowing.

Whether you return an Interface or a concrete type depends C# IList Nedir upon what you want to let your callers do with the object you created -- this is an API design decision, and there's no hard and fast rule. You have to weigh their ability to make full use C# IList Nasıl Kullanılır of the object against their ability to easily use a portion of the objects functionality (and of course whether you WANT them to be making full use of the object).

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Hordaki şekilde Kisi adında oluşturduğumuz dershaneı oluşturduğumuz liste nesnesine ekleyelim.

I leave this up to show that if you needed to do it (e.g. the C# IList Neden Kullanmalıyız off chance a third party library returned a List that you needed to convert for another 3rd party library), you can do it this way.

Özel koleksiyonlar oluşturmanıza imkân tanılamar: ölçün derme sınıfları gereksinimlerinizı kontralamıyorsa, kendi özel koleksiyonlarınızı C# CollectionBase kullanarak oluşturabilirsiniz. Bu, muta binalarınızı istediğiniz şekilde özelleştirmenizi esenlar.

additional advantage is that your code is safe from any changes to concrete class bey you are subscribing to only few of the methods of concrete class and those are the ones that are going to be there kakım long bey the concrete class inherits from the interface you are using.