5 Temel Unsurları için C# IEqualityComparer nerelerde kullanılıyor

5 Temel Unsurları için C# IEqualityComparer nerelerde kullanılıyor

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MarkusMarkus 22k44 gold badges3333 silver badges5959 bronze badges 1 I prefer your solution, because it causes no runtime overhead and tankes place only in tests.

" which of course is inferred in the selected answer. MSDN also recommends inheriting EqualityComparer instead of implementing the interface "because EqualityComparer tests equality using IEquatable

This is it. We have explored the interaction between LINQ extension methods and custom IEqualityComparers and even implemented one. The resulting class is both easy to use and highly customizable, because its operation is fully defined by the key selector function provided by user.

When writing programs in C# with the help of LINQ I have come across the IEqualityComparer generic interface several times. The name conveys the purpose of the interface clearly, still, surprisingly, my first attempts to apply it were marked by strong confusion - the thing merely didn't work the way I wanted it to. Moreover, after going to Google and StackOverflow I have noticed that I'm hamiş the only one to face difficulties with it.

Protected: Denetçi, salt türetilen sınıflar veya aynı derlemedeki sınıflar tarafından erişilebilir hale hasılat. Bu durumda, yoklamaün erişimi belirlenmişdır ve yalnızca mukannen sınıflar tarafından erişilebilir.

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

I have a number of classes that derive from a class BaseClass where BaseClass just has an `Id property.

Comparing types is optional C# IEqualityComparer nerelerde kullanılıyor and depends on your inheritance structure, but in this case, if the two players aren’t the same type, then they are not equal.

EDIT2: Bey mentioned in the C# IEqualityComparer Nasıl Kullanılır comments doing reflection within Equals or even GetHashCode is a bad idea birli it´s usually quite slow and güç often be avoided. If you know the properties to be checked for eqality at compile-time you should definitly include them within those two methods kakım doing so gives you much more safety.

operating on different types of classes, even complex types including sub-objects or nested lists. And hamiş only on simple classes comprising only primitive type properties.

Örnekte, kullanıcıların tay olup olmadığını arama ederken kullanıcı adları dikkate alınmıştır.

However, quite frequently we, C# programmers, use classes and want to get rid of duplicated objects in a collection the same way. Suppose, we do something with actors of a movie:

Eğer C# IEqualityComparer Kullanımı sayaç değteamülkeni Deneyim değhizmetkenine yeksan ise girilen sayının istediğimiz sayı olup olmadığını yoklama ediyoruz. Sevap bileğilse else bloğuna iniyor ve yanlış niteleyerek mesaj çıkartıp goto ile “Kimlik” adlı etiketimize derece derece şeşndaki kodlar tekrar işlemletiliyor. Burada sayaç ve tecrübe bileğmedarımaişetkenleri aynı olmadığı için döngü kırılıyor. Buraya bu aramaü koymasaydık tükenmez döngüye girecekti.

I'm glad the post was of some value to you. If you are looking to avoid common problems arising with LINQ, C# IEqualityComparer nedir you may also like my post diving into what deferred nature of some LINQ methods means to a programmer: [^]