However, this is an implementation detail and unless you want to rely on this in your code you cannot create a stable hash code provide an object that implements IStructuralEquatable.

Now, when we call Equals ourselves it will directly call our new fancy Equals that takes in a ScreenMetrics, which is great.

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

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 kişi't be overridden and always compares by reference.

This code technically works, but is sort of a hot mess and is derece really maintainable. Anyone using the library would have to write this code kakım well. The next logical step would be to just use .Equals on the entire metrics.

– Royi Namir Commented Mar 3, 2012 at 18:04 @RoyiNamir user844541's answer is correct, but maybe it is still hard for you to understand without a concrete example, if you are familiar with IEqualityComparer and how it is used by Linq's Distinct(), then after check the source code to see how it implement IStructuralEquatable on referencesource.microsoft.com/#mscorlib/system/collections/…, then you will see how it work.

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Doğrusu anlayacağınız “int” kabilinden, “bool” kabil paha tipli bir mütehavvil tekvin etmek istiyorsanız struct yapısını tercih edebilirsiniz.

The reason why you need the IStructuralEquatable is for defining a new way of comparision that would be right for all the objects .

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.

Net on a certain ortam, I'm compelled to issue the standard warning hamiş to rely on the values of hashcodes C# IStructuralEquatable nerelerde kullanılıyor or how they are computed, since it is not guaranteed to be the same across updates or platforms.

That is, you can 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 by using a specified IEqualityComparer implementation, and GetHashCode, which returns identical hash codes for objects that are equal.

There is no need for an equality operator that accepts different types. That should derece even compile. So this is a very weak excuse for having a non-generic interface that works with objects.

Burada nazarıitibar ederseniz şayet ms.x ve ms.y değmedarımaişetmeyeceğinden dolayı bir Deep Copy sözcük konusudur. şayet referans tipli örgülar olsalardı adidaki kabil bir sonuç elde edilecekti ve Shallow Copy kelime konusu olacaktı.