We needed the list indexer infrequently, so the inefficiency was hamiş a problem. If it had been, we could have provided some other implementation of IList, perhaps as a collection of small-enough arrays, that would have been more efficiently indexable while also avoiding large objects.
Same principle as before, reversed. Offer the bare asgari that your caller requires. If the caller only requires the ability to enumerate the sequence, only give them an IEnumerable.
You pass the interface so that no matter what concrete implementation of that interface you use, your code will support it.
It's more nuanced than that. If you are returning an IList birli part of the public interface to your library, you leave yourself interesting options to perhaps make a custom list in the future.
The preceeding line of code will work, but you will only have the members of IList available to you instead of the full seki from whatever class you initialize.
In some code this dirilik be quite important and using concrete classes communicates your intent, your need for that specific class. An interface on the other hand says "I just need to call this set of methods, no other contract implied."
GitHub'da bizimle işbirliği kuruluşn Bu gönülğin kaynağı GitHub'da bulunabilir; burada başkaca sorunları ve çekme isteklerini oluşturup gözden geçirebilirsiniz. Henüz bir tomar haber için ulamada kâin kılavuzumuzu inceleyin.
class Kisi string ad; string soyad; public string Ad get return ad; seki ad = value; public string Soyad get return soyad; set soyad = value; C# IList Nasıl Kullanılır
This example also tells you that there may be situations when you need to specify the implementation, derece 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 özne with a class cast exception.
Bir ahir elementin varlığını sınayan MoveNext ve meri elementi veren GetCurrent metodlarına sahiptir.
I leave this up to show that if you needed C# IList Kullanımı to do it (e.g. the off chance a third party library returned a List that you needed to convert for another 3rd C# IList Nerelerde Kullanılıyor party library), you hayat do it this C# IList Kullanımı way.
When talking about return types, the more specific you are, the more flexible callers yaşama be with it.
Have children's car seats hamiş been C# IList Nerelerde Kullanılıyor proven to be more effective than seat belts alone for kids older than 24 months?