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.
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Interface’ler için daha aşkın bilgelik peyda etmek isterseniz, kötüdaki kaynaklara delik atabilirsiniz:
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.
Safi 4.6 (and it will likely be caught by the compiler). But there can be more insidious cases, such kakım passing a C# array birli a IList. I am not sure everyone is aware arrays implement IList, which means support for Add should hamiş be assumed.
GitHub'da bizimle işbirliği strüktürn Bu dâhilğin kaynağı GitHub'da bulunabilir; burada hassaten problemlerı ve çekme isteklerini oluşturup gözden geçirebilirsiniz. Elan aşkın marifet için katkıda kâin kılavuzumuzu inceleyin.
You may hamiş 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 has a serious flaw.
However using a C# IList Kullanımı concrete implementation and List on a class that changes, could cause the calling code to need to be changed bey well. This is because a class adhering to IList guarantees C# IList Nerelerde Kullanılıyor a certain behavior that is hamiş guaranteed by a concrete type using List. Also having the power to do something like modify the default implementation of List on a class C# IList Nedir Implementing IList for say the .Add, .Remove or any other IList method gives the developer a lot
If the parameter type is IList, then the caller saf much more freedom, and birey use classes you never heard about, which may hamiş even have existed when your code was written.
List implements those büyük anne methods (not including extension methods), on tamamen of that it katışıksız about 41 public methods, which weighs in your consideration of which one to use in C# IList Nerelerde Kullanılıyor your application.
If you're working within a single method (or even in a single class or assembly in some cases) and no one outside is going to see what you're doing, use the fullness of a List. But if you're interacting with outside code, like when you're returning a list from a method, then you only want to declare the interface without necessarily tying yourself to a specific implementation, especially if you have no control over who compiles against your code afterward.
You might want to have an IOrderRepository that defines a collection of orders in either a IList or ICollection. You could then have different kinds of implementations to provide a list of orders kakım long as they conform to "rules" defined by your IList or ICollection.
for your return types. This C# IList Nedir gives your callers the most flexibility in passing in types to your methods and the most opportunities to cast/reuse the return values.
This works, because only the outer list is created in the first place. You kişi then insert individual items that are compatible with IList: