Açıklaması C# IList Nasıl Kullanılır Hakkında 5 Basit Tablolar

Açıklaması C# IList Nasıl Kullanılır Hakkında 5 Basit Tablolar

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

Bu şekilde listelerin birbirini point etmesi ve bentlı listenin elemanlarına valör verilmesi sağlamlanmaktadır.

The less popular answer is programmers like to pretend their software is going to be re-used the world over, when infact the majority of projects will be maintained by a small amount of people and however nice interface-related soundbites are, you're deluding yourself.

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.

Use whatever you want. It's your method. You're the only one who gets to see the internal implementation details of the method.

In some code this sevimli be quite important and using concrete classes communicates your intent, your need for that specific class. An interface on the other hand says "I just need to call this set of methods, no other contract implied."

You may not ever need that option, but it's an argument. I think it's the entire argument for returning the interface instead of the concrete type. It's worth mentioning, but in this case it saf a serious flaw.

Ask those people what they'd like the methods to return. Your question is fundamentally "how C# IList Neden Kullanmalıyız do I know what software to write?" You know by getting to know what problems your customer saf to solve, and writing code that solves their problems.

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Then later if you decide to convert the actual data store from a List to a Dictionary and expose the dictionary keys bey the actual value for the property (I have had to do exactly this before). Then consumers who have come to expect that their changes will be reflected inside of your class will no longer have that capability. That's a big problem! If you expose the List kakım an IEnumerable you yaşama comfortably predict that your collection is not being modified externally. C# IList Nedir That is one of the powers of exposing List kakım any of the above interfaces.

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Brad LeachBrad Leach 17k1818 gold badges7373 silver badges8888 bronze badges 1 3 It will create C# IList Neden Kullanmalıyız a new enumerable, which may not be desirable in C# IList Nerelerde Kullanılıyor some scenarios. You cannot sort an IList in-place through the interface except by using ArrayList.Adapter method in C# IList Nedir my knowledge.

So typically, your methods should accept and return interfaces for collections. This leaves your own implementation and your callers room to decide on the actual implementation kakım required.

Encapsulation relies on telling clients as little about the implementation of your class as possible. If you return a concrete List, you kişi't then change to some other better type without forcing all of your clients to re-compile/update.