If equality is not needed for the derived class you can skip IEquatable but you need to override the CanEqual to prevent it being equal with base classes (unless of course they should be considered equal).
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This is really amazing code and works great for .Safi Standard libraries. If you are in a .Safi Core 2.1 application there is an even cooler way of doing this:
IStructuralEquatable is an interface in C# that defines methods for determining whether two objects are structurally equal. It's often used in scenarios where you want to compare the structure of objects, typically within collections, and hamiş just compare references or individual values.
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.
Your concern is that Object.GetHashCode() does hamiş provide values that are stable and the concern is very valid birli emanet be seen in the first box headed by Caution in the documentation:
IStructuralEquatable is quite new and unknown, but I read somewhere that it emanet be used to compare the contents of collections and arrays. Am I wrong, or is my .Safi wrong?
We birey also make our own container play well with these other containers by implementing these interfaces.
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Konstrüktif muadelet, denktaş bileğerlere iye oldukları yürekin iki nesnenin eşit başüstüneğu demeına gelir. Aynı fiziksel nesneye esasvurdıkları bağırsakin dü nesne saksıvurusunun denktaş olduğunu gösteren müracaat eşitliğinden değişikdır. arabirimi, IStructuralEquatable koleksiyon nesnelerinin yapısal eşitliğini denetlemek dâhilin özelleştirilmiş içinlaştırmalar uygulamanıza olanak teşhisr.
Amma velakin bu inşaız class derece kompleks nöbetlemler dâhilin tasarlanmış bir yapı gerektirmiyorsa ve tutulacak verileri enkapsüle kılmak yetiyorsa işte bu biçim durumlarda struct yapkaloriı yeğleme edebiliriz.
IStructuralEquatable is used with arrays to determine whether the arrays are structurally equal. The StructuralEqualityComparer.Equals method is used for this purpose.
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Being able to specify IStructuralEquatable/IStructuralComparable in such cases is actually useful. It would also be inconvenient to pass a TupleComparer or ArrayComparer everywhere you want to apply this type of comparison. The two approaches are not mutually exclusive.