C# IEqualityComparer Temel Özellikleri ve Kullanımı Günlükler

C# IEqualityComparer Temel Özellikleri ve Kullanımı Günlükler

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T türü iki arabirimi de uygulamazsa varsayılan katlaştırıcı yoktur ve bir karşıtlaştırıcı veya hakkındalaştırma temsilcisi açıkça sağlamlanmalıdır.

This is used for custom sorting of objects. Prior to .Kemiksiz 3.5 it was used primarily for Array.Sort but now finds itself used for sorting with LINQ.

The same return value system applies bey IComparer. The difference between this and IComparer is IComparable will be implemented on the class that contains your field values, while IComparable derived classes are used for custom sorting. So for example:

Furthermore, it is very easy to make the class generic so that it güç be used for collections of objects of other types - hamiş only for MovieActors. The complete code for this example is available through github. (There is also a generic version of our comparer.)

Hope this article will help you to understand the IEqualityComparer interface. Don't hesitate to write questions or suggestions.

in the constructor, there is no point to store properties in this case at all and you dirilik avoid executing reflection and linq again and again for each GetValueProperties call.

Hem teorik bilgilerini artırmak hem bile uygulamalı deneyim kazanmak karınin C# IEqualityComparer Kullanımı bu platformu bileğerlendirebilirsin.

When you override Equals and GetHashCode you are changing the way the object will determine if it is equals to another. And a note, if you compare objects using == operator it will not have the same behavior kakım Equals unless you override the operator kakım well.

C# sınıflarını tanımlamak dâhilin "class" anahtar kelimesi kullanılır. C# IEqualityComparer nedir Dundaki örnek, bir "Person" dershaneı teşhismlar:

The Func is a class standing for something that might be called with MovieActor argument and C# IEqualityComparer Temel Özellikleri ve Kullanımı must yield a result of type object. Although generally I don't like dealing with pure object's in my code, this is a C# IEqualityComparer Kullanımı valid way to define a key selector derece bounding it to some specific key C# IEqualityComparer Temel Özellikleri ve Kullanımı type.

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Now, think of a field or fields that differentiate our class, ID for example. IEqualityComparer helps you to manage and improve the efficiency

Equals method instead of the Object.Equals method. but if I look at the implementation, they both use the generic Type:

5 When writing programs in C# with the help of LINQ I have come across the IEqualityComparer generic interface several times.