If equality is derece needed for the derived class you gönül 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).
Bu sayede, bilgi binalarının yürekindeki verilerin sıralanması yahut katlaştırılması fiillemleri özelleştirilebilir ve muayene edilebilir hale gelir.
This is really amazing code and works great for .Kupkuru Standard libraries. If you are in a .Safi Core 2.1 application there is an even cooler way of doing this:
Equals and object.ReferenceEquals. Equals is meant to be overridden for whatever sort of comparison makes the most sense for a given type, whereas ReferenceEquals güç't be overridden and always compares by reference.
Birli 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 generic tuple classes (Tuple, Tuple, Tuple, and so on) and the Array class provide explicit implementations of the IStructuralEquatable interface. By casting (in C#) or converting (in Visual Basic) the current instance of an array or tuple to an IStructuralEquatable interface value and providing your IEqualityComparer implementation as an argument to the Equals method, you kişi define a custom equality comparison for the array or collection.
After some more testing I found that any two arrays with the same first element have the same hash. I still think this is strange behavior.
Fakat, articles1 ve articles3 dizileri aynı makale başlıklarına farklı sıralarda mevla başüstüneğundan, CompareTo metodu farklı bir paha döndürür ve bu dizilerin konstrüktif olarak tay olmadığını belirtir.
The first issue we see here is that this struct is mutable in that you emanet actually change the veri later on via the set properties. There was no real reason that we introduced this except that we were used to it.
If you read this entire post and are thinking wow that is a lot of code and steps to remember then do hamiş fear because Dustin told me and showed me that Visual Studio will generate all of this for you!!!!! Check this out:
To achieve this, employee objects with matching SSN properties would be treated birli logically equal, even if they were hamiş structurally equal. Share Improve this answer Follow
Defines methods to support the comparison of objects for structural equality. Structural equality means that two objects are equal because they have equal values.
Fantasy TV series with a male protagonist who uses a bow and C# IStructuralEquatable Nasıl kullanılır arrows and has a hawk/falcon/eagle type bird companion
However, this is not so great if you are using the struct in a dictionary as my good friend Dustin mentioned to me because a Dictionary will always use the object version of Equals, which falls back to boxing :(