Detaylar, Kurgu ve C# IList Nasıl Kullanılır

Detaylar, Kurgu ve C# IList Nasıl Kullanılır

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I know there başmaklık 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.

C# List bâtınindeki verileri yazdırmak bâtınin zirdaki iki döngüden biri kullanılarak bileğerleri ekrana yazdırma medarımaişetlemi konstrüksiyonlabilir.

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Kendi koleksiyon sınıflarınızı oluştururken yeniden kullanılabilir harf yazmanızı katkısızlar: C# CollectionBase kullanarak umumi koleksiyon fiillemlerini yürekeren bir temel sınıf oluşturabilirsiniz.

Basically, I need to see some actual code examples of how using IList would have solved some mesele over just taking List into everything.

so its safety for you and freedom to the coder who is writing concrete implementation to change or add more functionality to his concrete class.

use LINQ to perform the conversion of your existing List when you return it - but it would be better to just create a more appropriate type to start with, kakım shown above.

IList is an Interface, not a class. If you want to initialize it, you need to initialize it to a class that implements IList, depending on your specific needs internally. Usually, IList is initialized with a List.

; being aware of the definition of the interface C# IList Nedir ie. all abstract methods that are there to be implemented by any class inheriting the interface. so if some one makes a huge class of his own with several methods besides the ones he inherited from the interface for C# IList Kullanımı some addition functionality, and those are of no use to you, its better to use a reference to a subclass (in this case the interface) and assign the concrete class object to it.

Then later if you decide to convert the actual data store from a List to a Dictionary and C# IList Kullanımı expose the dictionary keys kakım the actual value for the property (I have had to do exactly this before). Then consumers who have come to expect that their changes C# IList Nasıl Kullanılır will be reflected inside of your class will no longer have that capability. That's a big sorun! If you expose the List birli an IEnumerable you sevimli comfortably predict that your collection is hamiş being modified externally. That is one of the powers of exposing List birli any of the above interfaces.

IList is not a class; it's an interface that classes emanet implement. The interface itself is just a contract between the consumer of the class and the class itself. This line of code will work:

The most C# IList Nerelerde Kullanılıyor important case for using interfaces over implementations is in the parameters to your API. If your API takes a List parameter, then anyone who uses it saf to use List.

In particular, IList lets you use the indexer, and add/remove items; things that IEnumerable don't let you do.

additional advantage is that your code is safe from any changes to concrete class birli you are subscribing to only few of the methods of concrete class and those are the ones that are going to be there as long birli the concrete class inherits from the interface you are using.