5 Basit Teknikleri için C# IList Nedir

5 Basit Teknikleri için C# IList Nedir

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Note that the IsReadOnly flag comes from ICollection, and indicates whether items birey be added or removed from the collection; but just to really confuse things, it does hamiş indicate whether they emanet be replaced, which in the case of Arrays (which return IsReadOnlys == true) hayat be.

But far more importantly, if you are accepting an IList kakım a parameter you'd better be careful, because IList and List do hamiş behave the same way. Despite the similarity in name, and despite sharing an interface

Edit: You do need to be quick to get answers in here. Kakım I presented a slightly different syntax to the other answers, I will leave my answer - however, the other answers presented are equally valid.

So when writing a function or method that takes a collection, write it hamiş to take a List, but an IList, an ICollection, or IEnumerable. The generic interfaces will still work even for heterogenous lists because System.

The accepted answer by @DavidMills is quite good, but I think it gönül be improved upon. For one, there is no need to define the ComparisonComparer class when the framework already includes a static method Comparer.Create(Comparison). This method gönül be used to create an IComparison on the fly.

The speed difference is sufficiently great that in many cases it may be faster to copy a list to an array, sort the array, and copy the list back, than to try to have a sort routine process the list in place.

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

If you specify your methods to return an interface that means you are free to change C# IList Nerelerde Kullanılıyor the exact implementation later on without the consuming method ever knowing.

Anahtar bileğerleri tamlanan bir zıtlaştırıcı kullanılarak mukabillaştırılır ve her grubun öğeleri belirtilen bir kârlev kullanılarak yansıtılır.

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If you're working within a single method (or even in a single class or assembly in some cases) and no one outside is going to see what you're doing, use the fullness of a List. But if you're interacting with outside code, like when you're returning a list from a method, then you only want to declare the interface without necessarily tying yourself to a specific implementation, especially if you have no control over who compiles against your code afterward.

Bu örnekte, Student adında bir dershane ve StudentCollection isminde CollectionBase klasından türeyen özel bir derlem sınıfı oluşturduk.

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

IEnumerable allows you to iterate through a collection. ICollection builds on this and also allows for adding and removing items. IList also allows for accessing and modifying them at a specific index. By exposing the one that you expect your consumer to work with, you are free to change your C# IList Nasıl Kullanılır implementation. List happens to implement all three of those interfaces. If you expose your property bey a List or even an IList when all you want your consumer to have is the ability to iterate through the collection. Then they could come to depend on the fact that they dirilik modify the C# IList Kullanımı list.