Greatest Kılavuzu C# IStructuralEquatable Nasıl kullanılır için

Greatest Kılavuzu C# IStructuralEquatable Nasıl kullanılır için

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

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It differs from reference equality, which indicates that two object references are equal because they reference the same physical object.

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 not just compare references or individual values.

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

I never put much thought into using a struct over a class or even additional optimizations because to me the struct was optimized already. When I was working on fixing a bug in our DeviceDisplay to not trigger new events unless a value changed a whole new world opened up to me.

So, I am apparently wrong bey unequal objects may have equal hash codes. But isn't GetHashCode returning a somewhat randomly distributed set of values a requirement?

I've noticed these two interfaces, and several associated classes, have been added in .Kemiksiz 4. They seem a bit superfluous to me; I've read several blogs about them, but I still kişi't figure out what sorun they solve that was tricky before .Kupkuru 4.

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If you read this entire post and are thinking wow that is a lot of code and steps to remember then do derece 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 kakım logically equal, even if they were hamiş structurally equal. Share Improve this answer Follow

Now that our struct is immutable the actual issue comes up when you need to compare these values. When I started to write the code to fix the bug I just decided that "hey I have the old values, I birey just compare each of them":

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Specifically, I do derece know the exact type of the object. C# IStructuralEquatable Temel Özellikleri The only assumption I make is that it inherit from IStructuralEquatable.