Temel İlkeleri C# IList Nasıl Kullanılır

Temel İlkeleri C# IList Nasıl Kullanılır

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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 / veri-binding / etc ;)

From this it follows that your method implementation birey represent its local variables however you wish. The implementation details are derece exposed. Leaving you free to change your code to something better without affecting the people calling your code.

Using IList instead of List makes writing unit tests significantly easier. It allows you to use a 'Mocking' library to pass and return data.

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.

Ayrıca mafevkda anlattığımız IndexOf metodunu Asıl liste üzerinden ast listelerdeki elemanlar sinein kullanamazsınız. Esas liste üzerinden alt listelerin index sırasını bulabilirsiniz.

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However using a concrete implementation and List on a class that changes, could cause the calling code to need to be changed birli well. This is because a class adhering to IList guarantees 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 C# IList Neden Kullanmalıyız List on a class Implementing IList for say the .Add, .Remove or any other IList method gives the developer a lot

Whether you return an Interface or a concrete type depends upon what you want C# IList Nerelerde Kullanılıyor to let your callers do with the object you created -- this is an API design decision, and there's no hard and C# IList Nerelerde Kullanılıyor 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).

It C# IList Nerelerde Kullanılıyor really comes down to the kind of functionality you need. I'd suggest using the List class in most cases. IList is best for when you need to make a custom array that could have some very specific rules that you'd like to encapsulate within a collection so you don't repeat yourself, but still want .Kupkuru to recognize it as a list.

I know that IList is the interface and List is the concrete type but I still don't know when to use each one. What I'm doing now is if I don't need the Sort or FindAll methods I use the interface. Am I right? Is there a better way to decide when to use the interface or the concrete type?

List communicates "I need to get and kaş the elements of this sequence in arbitrary order and I only accept lists; I do hamiş accept arrays."

I have two ILists of the same type returned by NHibernate and have emerged the two IList into one, hence the need for sorting.

For instance, if you return an IEnumerable, then you are limiting them to iterating -- they kişi't add or remove C# IList Nerelerde Kullanılıyor items from your object, they yaşama only act against the objects. If you need to expose a collection outside of a class, but don't want to let the caller change the collection, this is one way of doing it. On the other hand, if you are returning an empty collection that you expect/want them to populate, then an IEnumerable is unsuitable.