It's always best to use the lowest base type possible. This gives the implementer of your interface, or consumer of your method, the opportunity to use whatever they like behind the scenes.

Bir dahaki sefere tefsir yaptığımda kullanılmak üzere aşamaı, e-posta adresimi ve web şehir adresimi bu tarayıcıya kaydet.

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Bearing this in mind, it makes most sense to pass types with the least number of external dependencies possible and to return the same. However, this could be different depending on the visibility of your methods and their signatures.

The preceeding line of code will work, but you will only have the members of IList available to you instead of the full set from whatever class you initialize.

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.

In case of using IList, the caller is always guareented things to work, and the implementer is free to change the underlying collection to any alternative concrete C# IList Nerelerde Kullanılıyor implementation of IList

However using a concrete implementation and List on a class that changes, could cause the calling code to need to be changed as C# IList Kullanımı well. This is because a class adhering to IList guarantees C# IList Kullanımı a certain behavior that is hamiş guaranteed by a concrete type using List. Also having the power C# IList Neden Kullanmalıyız to do something like modify the default implementation of List on a class Implementing IList for say C# IList Kullanımı the .Add, .Remove or any other IList method gives the developer a lot

If you started with a concrete type and you decided to change to another one, even if it uses the same interface, you're going to break someone else's code unless you started off with an interface or abstract base type. Share Improve this answer Follow

C# List sineindeki verileri yazdırmak muhtevain adidaki iki döngüden biri kullanılarak değerleri ekrana yazdırma ustalıklemi dokumalabilir.

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Is IList a good fit for your organisation? If a colleague asks you to change a method signature to use IList instead of List, ask them how they'd add an element to an IList. If they don't know about IsReadOnly (and most people don't), then don't use IList. Ever.

And, if you used a generic implementation, you would only be able to use a method that works for any object only with objects of a specific type.

I read a lot of posts saying how this makes it easier to change the implementation later on, but I just don't fully see how that works.