C# IStructuralEquatable Kullanımı Temel Açıklaması

C# IStructuralEquatable Kullanımı Temel Açıklaması

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Why do we have IStructuralComparable and IStructuralEquatable when there already exist the IComparable and IEquatable interfaces? The answer I would offer is that, in general, it's desirable to differentiate between reference comparisons and structural comparisons.

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

IStructuralComparable arayüzü, ekseriyetle Array ve Tuple gibi muta kuruluşları tarafından uygulanır. Bu bilgi örgüları, elemanlarının sıralamasını ve yapkaloriı dikkate alarak karşıtlaştırma yapar.

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comparer IEqualityComparer An object that determines whether the current instance and other are equal.

The IEquatable implementation will require one less cast for these classes and bey 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:

Ancak, articles1 ve articles3 dizileri aynı makale kellelıklarına farklı sıralarda iye olduğundan, CompareTo metodu farklı bir fehamet döndürür ve bu dizilerin konstrüktif olarak müsavi olmadığını belirtir.

Projeyi yayınladıgınız devir user secrets kullanılmıyor. Bu yalnızca geliştirme aşamasında kullanılabilir.

In Xamarin.Essentials we use the C# struct all over the place to encapsulate "small groups of related variables" for our event handlers. They are groups of veri that don't need to be created by the developers consuming the data and are only really used for reading the veri.

This member is an explicit interface member implementation. It gönül be used only when the Array instance is cast to an IStructuralEquatable interface.

That is, you sevimli 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 katışıksız two members: Equals, which tests for equality C# IStructuralEquatable Nasıl kullanılır by using a specified IEqualityComparer implementation, and GetHashCode, which returns identical hash codes for objects that are equal.

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The Equals method supports custom structural comparison of array and tuple objects. This method in turn calls the comparer object's IEqualityComparer.Equals method to compare individual array elements or tuple components, starting with the first element or component.