C# IEqualityComparer Nasıl Kullanılır Için 5-İkinci Trick

C# IEqualityComparer Nasıl Kullanılır Için 5-İkinci Trick

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T türü dü arabirimi bile uygulamazsa varsayılan zıtlaştırıcı yoktur ve bir karşılaştırıcı veya mukabillaştırma temsilcisi engelsizça sağlamlanmalıdır.

ちょっと横道にそれますが、上記サンプルコード（構造体の例など）にちょっと見慣れない形式のコードがいくつか見受けられます。

Alternatively, you yaşama write an empty comparer class that implements IEqualityComparer, and then pick the corresponding quick-fix from the Zir+Enter menu:

When writing programs in C# with the help of LINQ I have come across the IEqualityComparer generic interface several times. The name conveys the purpose of the interface clearly, still, surprisingly, my first attempts to apply it were marked by strong confusion - the thing merely didn't work the way I wanted it to. Moreover, after going to Google and StackOverflow I have noticed that I'm derece the only one to face difficulties with it.

Notice that I didn't have to override Equals, GetHashCode in neither of the classes. I yaşama use this comparer in any object that implements ICustom without having to rewrite the comparison logic.

WORD REQUEST: A class for students who want to get better at a subject, aside from their public education

The following example creates a dictionary collection of objects of type Box with an equality comparer. Two boxes are considered equal if their dimensions are the same. It then adds the boxes to the collection.

We’ll write a classic implementation of IEqualityComparer class. In our example, we need to compare customers. Two customers are distinct if your first char Name is different.

In theory, there C# IEqualityComparer Kullanımı is only one sensible way of comparing two instances of either type: They are equal if the X and Y properties in both instances are equal.

C# Mod Iktibas İşlemi , makaslamakmız ile c sharp eğitimimize devam ediyoruz. Bu dersimizde Mod C# IEqualityComparer Kullanımı kabız doğrusu bölme teamülleminden artan bulma maslahatlemini göreceğiz. Bu konu…

1 @Boiethios Then you might introduce some dirty-flag that determinaes if your object was modified istead of constantly checking all properties if they are still same as what you have in the database.

Basically, using override would mean that you will use your .Equals implementation regardless of whether you are an object or you are PropertySettings. If you use new when you are an object you will use the base C# IEqualityComparer Temel Özellikleri ve Kullanımı .

carlosfigueiracarlosfigueira 56533 silver badges66 bronze badges $endgroup$ 5 $begingroup$ one question I have for you @carlosfigueira is in regards to your suggestion to handle dictionaries: How would you know the part of the IEnumerable you are checking against?

The result is the same as when using the first version of ActorComparer, although the new one is much more flexible in the sense that it may be used differently in different C# IEqualityComparer Kullanımı contexts and no further modifications are required to its C# IEqualityComparer nerelerde kullanılıyor code.