Temel İlkeleri C# IList Nasıl Kullanılır

Temel İlkeleri C# IList Nasıl Kullanılır

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Doğrusu IEnumerable mimarisında filtreleme hizmetlemleri memory de dokumalırken, IQueryable da veritabanından dikme filtrelenmiş verileri elde ederiz.

1 @supercat: What could ISortableList offer that's hamiş already in IList? Or, asked differently, why couldn't an IList be sorted in-place without re-adding the items by your imagined static method?

Also, it casts IList to IList which saf the potential to be dangerous. In most cases that I have seen, List which implements IList is used behind the scenes to implement IList, but this is hamiş guaranteed and kişi lead to brittle code.

Then click on the bulb symbol or place the cursor on the IList and press Strg + "." You will become several implementations offered, like:

This will allow me to do generic processing on almost any array in the .Safi framework, unless it uses IEnumerable and derece IList, which happens sometimes.

You can have an instance of an interface, but you need to initialize it with a class that implements that interface such kakım:

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 implementation of IList

Matthew WatsonMatthew Watson 108k1111 gold badges170170 silver badges290290 bronze badges 2 2 This is trivially true for every interface. If you want to follow through with your argument, than you could argue to never use any interface at all, because some implementation of it might C# IList Neden Kullanmalıyız throw.

Whether you return an Interface or a concrete type depends upon what you want to let your callers do with the object you created -- this is an API design decision, and there's no hard and C# IList Nerelerde Kullanılıyor fast rule. You have to weigh their ability to make C# IList Nasıl Kullanılır full use of the object against their ability to easily use a portion of the objects functionality (and of course whether you WANT them to be making full use of the object).

List implements those nine methods (hamiş including C# IList Nedir extension methods), on tamamen of that it katışıksız about 41 public methods, which weighs in your consideration of which one to use in your application.

By asking for more than you need, you (1) make the caller do unnecessary work to satisfy your unnecessary demands, and (2) communicate falsehoods to the reader. Ask only for what you're going to use. That way if the caller özgü a sequence, they don't need to call ToList on it to satisfy your demand.

You might want to have an IOrderRepository that defines a collection of orders in either a IList or ICollection. You could then have different kinds of implementations to provide a list of orders kakım long bey they conform to "rules" defined by your IList or ICollection.

Özel koleksiyonlar oluşturmanıza imkân tanır: ölçün derlem sınıfları gereksinimlerinizı içinlamıyorsa, kendi özel koleksiyonlarınızı C# CollectionBase kullanarak oluşturabilirsiniz. Bu, done binalarınızı istediğiniz şekilde özelleştirmenizi sağlar.

The other general reason for using interfaces is to expose the minimal C# IList Neden Kullanmalıyız amount of knowledge necessary to the user of an object. Consider the (contrived) case where I have a data object that implements IList.