Bir İnceleme C# IList Neden Kullanmalıyız

Bir İnceleme C# IList Neden Kullanmalıyız

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Note that the IsReadOnly flag comes from ICollection, and indicates whether items gönül be added or removed from the collection; but just to really confuse things, it does derece indicate whether they gönül be replaced, which in the case of Arrays (which return IsReadOnlys == true) dirilik be.

From this it follows that your method implementation güç represent its local variables however you wish. The implementation details are not exposed. Leaving you free to change your code to something better without affecting the people calling your code.

Bir dahaki sefere değerlendirme yapmış olduğumda kullanılmak üzere kademı, elektronik posta adresimi ve web şehir adresimi bu tarayıcıya kaydet.

Sıfır zir hadına iye birlik boyutlu diziler otomatik olarak uygular IList. Bu, diziler ve öbür koleksiyon türleri ortada yineleme ifa etmek muhtevain aynı kodu kullanabilen genel yöntemler oluşturmanıza imkân teşhisr.

In the end, you might need to replace an implementation for any reason; performance is just one possibility. Regardless of the reason, using the least-derived type possible will reduce the need for changes in your code when you change the specific run-time type of your objects.

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

+1 for all of us who hate it when a small app is loaded with interfaces and clicking on "find definition" takes us somewhere OTHER than the source of the sıkıntı... Güç I borrow the phrase "Architecture Astronauts"? I sevimli see it will come C# IList Nerelerde Kullanılıyor in handy.

class Kisi string ad; string soyad; public string Ad get return ad; kaş ad = value; public string Soyad get return soyad; seki soyad = value;

the method, it birey make C# IList Nasıl Kullanılır a huge difference -- if they have an array and you're asking for a list, they have to change the array to a list or v.v. whenever calling the method, a total waste of time from both a programmer and performance POV.

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

By asking for more than you need, you (1) make the caller do unnecessary work to satisfy your unnecessary demands, and (2) communicate falsehoods to the reader. Ask only for what you're going to use. That way if the caller has a C# IList Nasıl Kullanılır sequence, they don't need to call ToList on it to satisfy your demand.

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

for your return types. This C# IList Nerelerde Kullanılıyor gives your callers the most flexibility in passing in types to your methods and the most opportunities to cast/reuse the return values.

For instance, if you return an IEnumerable, then you are limiting them to iterating -- they dirilik't add or remove items from your object, they kişi 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 C# IList Neden Kullanmalıyız 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.