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 ;)
Maybe take it into a List of T rather than ArrayList, so that you get type safety and more options for how you implement the comparer.
So I came across an interesting problem today. We have a WCF web service that returns an IList. Hamiş really a big deal until I wanted to sort it.
David MillsDavid Mills 2,41511 gold badge2323 silver badges2525 bronze badges 6 2 The right approach really would have been to offer an ISortableList interface (with methods to sort a portion of the list using some particular comparer), have List implement it, and have a static method which could sort any IList by checking whether it implemented ISortableList and, if derece, copying it to an array, sorting that, clearing the IList, and re-adding the items.
In this specific case since you're essentially talking about a language construct, derece a custom one it generally won't matter, but say for example that you found List didn't support something you needed.
IList on the other hand is an Interface. Basically, if you want to create your own custom List, say a list class called BookList, then you gönül use the Interface to give you basic methods and structure to your new class. IList is for when you want to create your own, special sub-class that implements List.
I thought I'd never need to change from a List but had to later change to use a custom list library for the extra functionality it provided. Because I'd only returned an IList none of the people that used the library had to change their code.
Matthew WatsonMatthew Watson 108k1111 gold badges170170 silver badges290290 C# IList Nedir bronze badges 2 2 This is trivially true for every interface. If you C# IList Neden Kullanmalıyız want to follow through with your argument, than you could argue to never use any interface at all, because some implementation of it might throw.
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List implements those büyük anne methods (not including extension methods), on bütünüyle of that it katışıksız about 41 public methods, C# IList Kullanımı which weighs in your consideration of which one to use in your application.
IList is not a class; it's an interface that classes kişi implement. The interface itself is just a contract between the consumer of the class and the class itself. This line of code will work:
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If you're just enumerating over the values, you should be using C# IList Nerelerde Kullanılıyor IEnumerable. Every type of datatype that emanet hold more than one value implements IEnumerable (or should) and makes your method hugely flexible.
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