C# IList Nasıl Kullanılır No Further Mystery

C# IList Nasıl Kullanılır No Further Mystery

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The following example demonstrates the implementation of the IList interface to create a simple, fixed-size list. This code is part of a larger example for the IList interface.

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Diyelim ki formunuzdaki textboxları listenize doldurdunuz yalnızca Text’i boş olan textboxları bulmanız gerekiyor. Bunun derunin List u kullanmanız gerekir. Yukarıda anlattığımız örneği basit olarak meydana getirecek olursak;

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 hamiş, copying it to an array, sorting that, clearing the IList, and re-adding the items.

Your code is now broken, because int[] implements IList, but is of fixed size. The contract for ICollection (the base of IList) requires the code that uses it to check the IsReadOnly flag before attempting to add or remove items from the collection. The contract for List does hamiş.

The Liskov Substitution Principle (simplified) states that a derived type should be able to be used in place of a base type, with no additional preconditions or postconditions.

Most app-level code (i.e. the everyday code that ou write for your application) should probably focus on the generic versions; however there is also a lot of infrastructure code around that must use reflection.

However using a concrete implementation and List on a class that changes, could cause the calling code to need to be changed bey 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 C# IList Kullanımı do something like modify the default implementation of List on a class Implementing IList for say C# IList Nasıl Kullanılır the .Add, .Remove or any other IList method gives the developer a lot

The idea is that you hide the implementation details from the user, and instead provide them with a stable interface. This is to reduce dependency on details that might change in the future.

Collaborate with us on GitHub C# IList Kullanımı The source for this content sevimli be found on GitHub, where you sevimli also create and review issues and pull requests. For more information, see our contributor guide.

However, this makes the method more fragile, kakım any change to the returned object type may break the calling code. C# IList Neden Kullanmalıyız In practice though, that generally isn't a major sorun.

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So typically, your methods should accept and return interfaces for collections. This leaves your own implementation and your callers room to decide on the actual implementation birli required.

Bu şekilde, Dog C# IList Nerelerde Kullanılıyor dershaneı IAnimal interface’inin sözleşmesine uymuş evet. Aynı şekilde, başka efsanevi sınıfları da IAnimal interface’ini uygulayabilir. Örneğin, süflidaki kodda bir Cat klası tanımladım ve IAnimal interface’ini uyguladım.