C# IEqualityComparer Nasıl Kullanılır - Genel Bakış

C# IEqualityComparer Nasıl Kullanılır - Genel Bakış

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If you do decide you need a comparer, you hayat certainly use a generalized comparer (see DMenT's answer), but if you need to reuse that logic you should encapsulate it in a dedicated class. You could even declare it by inheriting from the generic base:

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If a reference is no longer publicly available, should you include the proofs of the results you cite from it?

Furthermore, it is very easy to make the class generic so that it yaşama be used for collections of objects of other types - derece only for MovieActors. The complete code for this example is available through github. (There is also a generic version of our comparer.)

The IEqualityComparer interface supports only equality comparisons. Customization of comparisons for sorting and ordering is provided by the IComparer interface.

Photo by Moosa Haleem Equality might seem straightforward, C# IEqualityComparer nedir but it tends to get fuzzier the longer you think about it. When it comes to programming, there are two general C# IEqualityComparer Nasıl Kullanılır thoughts around equality.

I would say that the best use would be when you need to plug in different equality rules for a C# IEqualityComparer Kullanımı certain algorithm. Much in the same way that a sorting algorithm might accept an IComparer, C# IEqualityComparer Kullanımı a finding algorithm might accept an IEqualityComparer

RESTful web servisleri veya SOAP tabanlı servisler oluşturarak başka uygulamalarla etkileşimde bulunabilirsin.

Xamarin kabilinden platformlar sayesinde C# dilini kullanarak hem iOS hem bile Android kucakin native mobil uygulamalar tasarlayabilirsin.

The Func is a class standing for something that might be called with MovieActor argument and must yield a result of type object. Although generally I don't like dealing with pure object's in my code, this is a valid way to define a key selector derece bounding it to some specific key type.

When we make the inference from the comparer we say "IEqualityComparer is contravariant in T, so we hayat accept BaseClass or any smaller type

C# c# ref out paramsoutout kullanımıparamsparams kullanımıref C# IEqualityComparer Kullanımı yararlanmaı Yazı dolanımı

Valör tipleri bağımsızdır ve birinin kıymeti diğerini etkilemezken, referans tipleri aynı bellek adresini paylaşarak birbirlerini etkileyebilirler.

Doing that you changed the behavior for a single class, what if you need the same logic for other classes? If you need a "generic comparison". That is why you have IEqualityComparer.