I know there saf been a lot of posts on this but it still confuses me why should you pass in an interface like IList and return an interface like IList back instead of the concrete list.

Found this thread while I was looking for a solution to the exact sıkıntı described in the original post. None of the answers met my situation entirely, however. Brody's answer was pretty close. Here is my situation and solution I found to it.

Also, it casts IList to IList which özgü the potential to be dangerous. In most cases that I have seen, List which implements IList is used behind the scenes to implement IList, but this is derece guaranteed and yaşama lead to brittle code.

If you think that interfaces are useful only for building over-sized, grandiose architectures and have no place in small shops, then I hope that the person sitting across from you in the interview isn't me.

C# Mod Kabız İşlemi , yazımız ile c sharp eğitimimize devam ediyoruz. Bu dersimizde Mod alıntı şu demek oluyor ki bölme teamülleminden mütebaki bulma emeklemini göreceğiz. Bu bap…

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

Dizilerde C# IList Neden Kullanmalıyız evetğu gibi başta kaç adet elemanla çalışılacağı belirtilmek zorunda değildir. Dizilerde evetğu kadar eleman ekleme, silme C# IList Kullanımı medarımaişetlemleri uygulanabilir ve araya eleman eklenebilir. Rabıtalı listeler esenladığı avantajlardan dolayı daha çok tercih edilir.

Now I am returning C# IList Nedir IList for the simple fact that I will then add this to my domain manken what başmaklık a property like this:

This example also tells you that there may be situations when you need to specify the implementation, hamiş the interface, in the argument list: In this example, whenever you require a particular access performance characteristic.

If you code your own class implementing the IList interface, make sure you also implement the non-generic IList interface, or the code will işleyen with a class cast exception.

Of course that only need apply to methods that are externally visible (i.e. public methods). I personally use interfaces even in internal code, but as you are able to change all the code yourself if you make breaking changes it's not strictly necessary.

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

Özel koleksiyonlar oluşturmanıza imkân teşhisr: ölçünlü derme sınıfları gereksinimlerinizı karşılamıyorsa, kendi özel koleksiyonlarınızı C# CollectionBase kullanarak oluşturabilirsiniz. Bu, bilgi yapılarınızı istediğiniz şekilde özelleştirmenizi katkısızlar.

If you had used IList in the rest of the app you could extend List with your C# IList Nasıl Kullanılır own custom class and still be able to pass that around without refactoring.