C# IList Neden Kullanmalıyız Seçenekler

C# IList Neden Kullanmalıyız Seçenekler

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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.

Zirdaki şekilde Kisi isminde oluşturduğumuz derslikı oluşturduğumuz liste nesnesine ekleyelim.

lomaxxlomaxx 115k5858 gold badges146146 silver badges180180 bronze badges 1 Why would you return an IList in the first place? From a WCF service?

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.

ToList first? How about returning it? I don't understand what you mean by "method will survive" when using vars? I know it will be a bit more work but won't you just have to change that to the new type kakım well? So maybe IList to IList?

This level of abstraction goes the other direction when it belongs to method parameters. When you pass your list to a method that accepts IEnumerable you hayat be sure that your list is derece going to be modified. When you are the person implementing the method and you say you accept an IEnumerable because all you need to do is iterate through C# IList Nasıl Kullanılır that list.

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

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

It is like this other question. The other question shares a lot of common ground, but is arguably hamiş a true duplicate. In either case though, this C# IList Kullanımı is hamiş opinion-based. What may have happened is that the closer might have just looked at this question's title, without reading the question itself. The body is objective.

This is usually guaranteed for a specific implementation of a container (List documentation: "It implements the IList generic interface using an array whose size is dynamically increased kakım required.").

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

Encapsulation relies on telling clients birli little about the implementation of your class bey possible. If you return a concrete List, C# IList Nerelerde Kullanılıyor you emanet't then change to some other better type without forcing all of your clients to C# IList Nasıl Kullanılır re-compile/update.