C# IEqualityComparer nedir A Gizli Silah

C# IEqualityComparer nedir A Gizli Silah

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T türü iki arabirimi de uygulamazsa varsayılan karşılaştırıcı yoktur ve bir zıtlaştırıcı veya muhaliflaştırma temsilcisi yalınlıkça esenlanmalıdır.

When you find yourself really to need this because you have to many properties you probably have some basic mesele bey your class is doing too much.

Cevapla ↓ 21 سعید محمد 3 yıl önce I love your blog.. very birçok colors & theme. Did you create this website yourself or did you hire someone to do it for you?

CodeFuller's answer will work fine, but birli an alternative option, you could use MoreLINQ and its DistinctBy method, which would avoid you needing to create a separate class at all:

GetValueProperties is implemented as a (single-line) method; to fetch the "class properties" you use the lambda expression inline; the code should be consistent (either do both Where expressions inline, or both birli helper methods)

We first need to define a class that needs comparison with C# IEqualityComparer Kullanımı another instance of the class. For this post, we’ll be using a Player class with two properties.

Koleksiyonlar umumiyetle bir muadele hakkındalaştırıcısı ve/veya bir sıralama karşıtlaştırıcısı kullanır. Karşıtlaştırmalar C# IEqualityComparer Nasıl Kullanılır sinein iki yapı kullanılır.

Bu yöntemler sayesinde, standart katlaştırma mantığını değteamültirerek özel çalışmalemler yapabilir ve uygulamanızın performansını ve doğruluğunu artırabilirsiniz.

I've assumed that you want to select ItemWrapper - it's hard to tell without seeing the types involved, but that looks likely to be what you want.

The dictionary is recreated with an equality comparer that defines equality in a different way: Two boxes are considered equal if their volumes are the same.

You could be passing, via extension method, a ReadOnlyCollection and they would still be able to evaluate through it. They cannot, then, alter the original collection, because the original collection could be written in any number of ways.

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

Typically I'd write MyCustomeComparer which implements IEqualityComparer and pass a MyCustomeComparer object around to whichever objects that need it - I'm sure you're aware of this usage.

If there are multiple ways instances of C# IEqualityComparer nedir a class could be considered equal. The best example of this is a string, for which the framework provides six C# IEqualityComparer nedir different comparers in StringComparer.