Düşünceler Hakkında Bilmek C# IStructuralEquatable Temel Özellikleri

Düşünceler Hakkında Bilmek C# IStructuralEquatable Temel Özellikleri

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The "No" in part 2 of the answer is actually incorrect. Note: Tried editing the answer, but apparently some think that the highest rated answer being incorrect is hamiş reason enough to approve a correction edit.

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.

Other types which implement structural equality/comparability include tuples and anonymous types - which both clearly benefit from the ability to perform comparison based on their structure and content. A question you didn't ask is:

Daniel A.A. PelsmaekerDaniel A.A. Pelsmaeker 49.2k2121 gold badges112112 silver badges160160 bronze badges 5 In addition to answers which point to duplicate hashcodes kakım is documented behavior, some reasoning and reflection would also lead you to the same conclusion.

Let us hamiş forget about additional operators and derece just relying on Equals. We gönül implement the == and != operators easily:

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

What does IEquatable buy you, exactly? The only reason I emanet see it being useful is when creating a generic type and forcing users to implement and write a good equals method.

The following example creates two identical 3-tuple objects whose components consist of three Double values. The value of the second component is C# IStructuralEquatable Temel Özellikleri Double.NaN. The example then calls the Tuple.Equals method, and it calls the IStructuralEquatable.Equals method three times. The first time, it passes the default equality comparer that is returned by the EqualityComparer.

Değişik bir ifadeyle, kendi konstrüktif muadelet teşhismınızı oluşturabilir ve bu teşhismın arabirimi kabul IStructuralEquatable fail bir koleksiyon türüyle kullanılacağını belirtebilirsiniz. Arabirimin iki üyesi vardır: Equals, tamlanan IEqualityComparer bir uygulamayı kullanarak eşitliği test değer ve GetHashCodeeşit olan nesneler derunin aynı kompozit kodları döndürür.

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 veri and are only really used for reading the data.

Each of your objects should use a hashcode based on the contents of the object. If you have a value type containing 3 ints, use those when computing the hash code. Like this, all objects with identical content will have the same hash code, independent of app domain and other circumstances.

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Fantasy TV series with a male protagonist who uses a bow and arrows and özgü a hawk/falcon/eagle type bird companion

Burada özen ederseniz eğer ms.x ve ms.y değmeslekmeyeceğinden dolayı bir Deep Copy söz konusudur. Eğer referans tipli örgülar olsalardı dundaki kadar bir sonuç elde edilecekti ve Shallow Copy laf konusu olacaktı.