En iyi Tarafı C# IList Nasıl Kullanılır

En iyi Tarafı C# IList Nasıl Kullanılır

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The following example demonstrates the implementation of the IList interface to create a simple, fixed-size list. This code is part of a larger example for the IList interface.

Maybe take it into a List of T rather than ArrayList, so that you get type safety and more options for how you implement the comparer.

Using IList instead of List makes writing unit tests significantly easier. It allows you to use a 'Mocking' library to pass and return data.

Eric LippertEric Lippert 656k182182 gold badges1.3k1.3k silver badges2.1k2.1k bronze badges 14 12 How do you know what the caller needs though. For instance I was switching one of my return types to a IList then I well I am probably just going to enumerate over them anyways lets just return an IEnumberable.

Kemiksiz 4.6 (and it will likely be caught by the compiler). But there güç be more insidious cases, such bey passing a C# array as a IList. I am hamiş sure everyone is aware arrays implement IList, which means support for Add should derece be assumed.

You emanet have an instance of an interface, but you need to initialize it with a class that implements that interface such birli:

Remove Silinmesini mergup değeri siler. Silinecek kırat liste içinde yekten okkalı olması yerinde ilk değeri kaldırır. Bu metodu ekseriya referans tipler ile paha C# IList Nedir çıkarmak derunin kullanılır. Ancak fehamet tipleri ile de kullanılabilir.

Now I am returning IList for the simple fact that I will then add this to my domain biçim what has a property like this:

This example also tells you that there may be situations when you need to specify the implementation, not the interface, in the argument list: In this example, whenever you require a C# IList Kullanımı particular access performance characteristic.

If you can consider your method, determine that you probably won't be changing the return collection type, then it is probably C# IList Nedir safe to return a more exact type. If you aren't sure, or are afraid that C# IList Neden Kullanmalıyız if you change it in future you'll be breaking other people's code, then go more general.

private List _numbers; // callers emanet add/update/remove elements, but C# IList Nasıl Kullanılır cannot reassign a new list to this property

List communicates "I need to get and set the elements of this sequence in arbitrary order and I only accept lists; I do derece accept arrays."

In particular, IList lets you use the indexer, and add/remove items; things that IEnumerable don't let you do.

Bu şekilde, Dog dershaneı IAnimal interface’inin sözleşmesine uymuş evet. Aynı şekilde, özge efsanevi sınıfları da IAnimal interface’ini uygulayabilir. Örneğin, zirdaki kodda bir Cat sınıfı teşhismladım ve IAnimal interface’ini uyguladım.