En iyi Tarafı C# IEqualityComparer Nasıl Kullanılır

En iyi Tarafı C# IEqualityComparer Nasıl Kullanılır

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özürlü kullanıcılar bâtınin erişilebilirlik rolü, bir yoklamaün belli bir meselelevi yahut rolü olduğunu belirtir. Bu gösteriş, ekran türkücü mukayyetmlar veya başka yardımcı teknolojiler tarafından kullanılarak denetlemeün medlulını ve işlemlevini henüz eksiksiz anlamalarına yardımcı olur.

If you need to support custom GetHashCode() functionality, use the alternative constructor to provide a lambda to do the alternative calculation:

When i am using dictionaries sometimes I have to change the default Equals meaning in order to compare Keys. I see that if I override the Equals and GetHashCode on the key's class or i create a new class which implements IEqualityComparer I have the same result. So what's the difference between using IEqualityComparer and Equals/GethashCode Override?

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 hamiş the only one to face difficulties with it.

Notice that I didn't have to override Equals, GetHashCode in neither of the classes. I sevimli use this comparer in any object C# IEqualityComparer Temel Özellikleri ve Kullanımı that implements ICustom without having to rewrite the comparison logic.

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I am trying to generate a listbox of items that is a concatenation of two strings. I have created a class that implements IEqualityComparer and I want to make this list distinct.

 In the plain case, when we need to drop only exact duplicates, the simple Distinct() call will do. The simplest possible example is C# IEqualityComparer Kullanımı getting unique integers from a collection of numbers:

C# sınıflarını tarif etmek midein "class" anahtar kelimesi kullanılır. Hordaki örnek, bir "Person" derslikı tanımlar:

İşin aslı ilk yazdığım şekilde sonsuz C# IEqualityComparer nerelerde kullanılıyor dönguzuv girdiğinden kodları beş on değsoruntirdim ve bu C# IEqualityComparer Temel Özellikleri ve Kullanımı hale geldi. :D Bu şekilde bir muamele muhtemelen olmayacağından saçma da olsa örnek olması amacı çallıkışır hale getirdim. Yazdığım kodları biraz açıklayayım.

It seems like a good rule. Let’s see how we dirilik implement the IEqualityComparer to make sure we dirilik work with collections of Player instances.

However, quite frequently we, C# programmers, use classes and want to get rid of duplicated objects in a collection the same way. Suppose, we do something with actors of a movie:

I have to say, that there are other methods to create an equality comparer with similar functionality. For example, see this article on CodeProject - it demonstrates how to use reflection to obtain and compare property values.

The result is the same bey 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 contexts and no further modifications are required to its code.