It's normally expected that if you implement IEquatable.Equals you will also override Object.Equals to be consistent. In this case how would you support both reference and structural equality?
Bu sayede, data yapılarının karınindeki verilerin sıralanması yahut karşılaştırılması teamüllemleri özelleştirilebilir ve kontrolör edilebilir hale gelir.
If you want to implement IEquatable in a class hierarchy you hayat use the following pattern. It prevents derived (including sibling) classes from being equal.
Do hamiş fear because if you simply implement IEquatable the dictionary will use the strongly typed version! The birçok thing is that we kind of actually already did this! So now we just have to do this:
Bey an example, it might make sense for two different instances of an Employee class to be considered equal if they both represent the same entity in your system.
The IStructuralEquatable interface enables you to implement customized comparisons to check for the structural equality of collection objects.
If those objects do derece contain equality/hashcode methods that satisfy that contract, you will have to wrap them and provide correct implementations for those methods yourself in the wrapper.
Consider that there are only ~4.2 billion different hashcodes. Gönül you create more than this many different objects of the type on which GetHashCode is called? In this case it is easy to see the answer is "yes". So GetHashCode is a sort of compressing projection onto a smaller seki - there are bound to be duplicates.
Projeyi yayınladıgınız saat user secrets kullanılmıyor. Bu sadece ihya aşamasında kullanılabilir.
When working with collections or structures where the order of elements matters, and you want to compare their structures, IStructuralEquatable can be useful.
GitHub'da bizimle ortaklık kuruluşn Bu derunğin kaynağı GitHub'da bulunabilir; burada başkaca problemlerı ve çekme isteklerini oluşturup gözden geçirebilirsiniz. Henüz ziyade veri midein yardımda mevcut kılavuzumuzu inceleyin.
That is, you birey create your own definition of structural equality and specify that this definition be used with a collection type that accepts the IStructuralEquatable interface. The interface başmaklık two members: Equals, which tests for equality by using a specified IEqualityComparer implementation, and GetHashCode, which returns identical hash codes for objects that are equal.
You observations does derece conflict with C# IStructuralEquatable Kullanımı the documentation and there is no bug in the implementation.
3 feature called Tuple Equality! That is right, you hayat create a ValueTuple and simply compare them as they are super optimized, don't create any objects, and reduce this to a single line of code!