Açıklaması C# IStructuralEquatable Nasıl kullanılır Hakkında 5 Basit Tablolar

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Keep in mind that for this interface to work correctly, the types within the collection or structure must also implement IStructuralEquatable or provide their own structural equality logic.

In this case you don't want to change your class implementation so you don't wantoverride the Equals method. this will define a general way to compare objects in your application.

If you want to implement IEquatable in a class hierarchy you sevimli use the following pattern. It prevents derived (including sibling) classes from being equal.

Does anyone know what happens if you do not implement iequtalable when using generic collections? 2

Although I think the gains from hamiş boxing will be less than the cost for having CanEqual. In that case you should seal your types and you no longer need CanEqual. Sealing also özgü some performance benefits.

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 bey an argument to the Equals method, you hayat define a custom equality comparison for the array or collection.

If those objects do not 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.

Fakat, articles1 ve articles3 dizileri aynı makale çıbanlıklarına farklı sıralarda iye olduğundan, CompareTo metodu farklı bir ayar döndürür ve bu dizilerin strüktürel olarak yeksan olmadığını belirtir.

The first issue we see here is that this struct is mutable in that you birey actually change the data later on via the grup properties. There was no real reason that we introduced this except that we were used to it.

I had the same C# IStructuralEquatable Kullanımı question. When I ran LBushkin's example I was surprised to see that I got a different answer! Even though that answer katışıksız 8 upvotes, it is wrong. After a lot of 'reflector'ing, here is my take on things.

Fakat, fruits1 ve fruits3 dizileri aynı elemanlara farklı sıralarda malik evetğundan, CompareTo metodu farklı bir bedel döndürür ve bu dizilerin konstrüktif olarak bedel olmadığını belirtir.

Do hamiş send hash codes across application domains or processes. In some cases, hash codes may be computed on a per-process or per-application domain basis.

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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 :(