driisdriis 163k4545 gold badges268268 silver badges343343 bronze badges 3 Sorry, but even now there are plenty of uses for library code to use IList (non-generic). Anyone who says otherwise hasn't suffered enough reflection / data-binding / etc ;)
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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.
In addition to the older code that doesn't know about generics, there are also a lot of cases where you know you have a list
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 birey be sure that your list is not going to be modified. When you are the person implementing the method and you say you accept an IEnumerable C# IList Nerelerde Kullanılıyor because all you need to do is iterate through that list.
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Ask those people what they'd like the methods to return. C# IList Neden Kullanmalıyız Your C# IList Nedir question is fundamentally "how do I know what software to write?" You know by getting to know what problems your customer has to solve, and writing code that C# IList Kullanımı solves their problems.
Whether you return an Interface or a concrete type depends upon what you want to let your callers do with the object you created -- this is an API design decision, and there's no hard and fast rule. You have to weigh their ability to make full use of the object against their ability to easily use a portion of the objects functionality (and of course whether you WANT them to be making full use of the object).
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Bir ahir elementin varlığını sınayan MoveNext ve geçerli elementi veren GetCurrent metodlarına sahiptir.
Brad LeachBrad Leach 17k1818 gold badges7373 silver badges8888 bronze badges 1 3 It will create a new enumerable, which may hamiş be desirable in some scenarios. You cannot sort an IList in-place through the interface except by using ArrayList.Adapter method in my knowledge.
Unless you have a C# IList Nedir very compelling reason to do so, your best bet will be to inherit from System.Collections.ObjectModel.Collection since it özgü everything you need.
Bu şekilde, Dog klası IAnimal interface’inin sözleşmesine uymuş olabilir. Aynı şekilde, ayrıksı efsanevi sınıfları da IAnimal interface’ini uygulayabilir. Örneğin, aşağıdaki kodda bir Cat sınıfı tanılamamladım ve IAnimal interface’ini uyguladım.