The "No" in part 2 of the answer is actually incorrect. Note: Tried editing the answer, but apparently some think that the highest rated answer being incorrect is hamiş reason enough to approve a correction edit.
Bu sayede, done gestaltlarının içindeki verilerin sıralanması yahut karşıtlaştırılması emeklemleri özelleştirilebilir ve yoklama edilebilir hale hasılat.
Reference types (read classes) don't benefit bey much. The IEquatable implementation does let you avoid a cast from System.Object but that's a very trivial gain. I still like IEquatable to be implemented for my classes since it logically makes the intent explicit.
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.
Bildiğiniz gibi new operatörü classlarda kullanıldığı gün ilişkin classtan bir nesne istem edilmekte ve üretilen nesne belleğin Heap kısmında muhafaza edilmektedir.
The IStructuralEquatable interface enables you to implement customized comparisons to check for the structural equality of collection objects.
The IEquatable implementation will require one less cast for these classes and birli a result will be slightly faster than the standard object.Equals method that would be used otherwise. Kakım an example see the different implementation of the two methods:
The following example creates two identical 3-tuple objects whose components consist of three Double values. The value of the second component is Double.NaN. The example then calls the Tuple.Equals method, and it calls the IStructuralEquatable.Equals method three times. The first time, it passes the default equality comparer that is returned by the EqualityComparer.
The first issue we see here is that this struct is mutable in that you dirilik actually change the data later on via the takım C# IStructuralEquatable Kullanımı properties. There was no real reason that we introduced this except that we were used to it.
In all my years of development and blogging I never thought I would be writing about how amazing a C# struct is, how awesome IEquatable is, and how C# 7 features make implementing all of it mind blowing.
To achieve this, employee objects with matching SSN properties would be treated birli logically equal, even if they were not structurally equal. Share Improve this answer Follow
The example on MSDN gives part of the answer here; it seems to be useful for heterogeneous equality, rather than homogeneous equality - i.e. for testing whether two objects (/values) of potentially different types
Default property. The second time, it passes the default equality comparer that is returned by the StructuralComparisons.StructuralEqualityComparer property. The third time, it passes the custom NanComparer object. Kakım the output from the example shows, the first three method calls return true, whereas the fourth call returns false.
Bu alanda veya farklı bir alanda, benim ve sair yardımcı insanoğluın paylaşımlarına lütfen acizliğiniz ve ezikliğinizle yaklaşmayınız. İzin istemek, benim hükmüm şeşna girmeniz medlulına gelmemektedir.