C# IEqualityComparer Nasıl Kullanılır - Genel Bakış

C# IEqualityComparer Nasıl Kullanılır - Genel Bakış

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Provides an equality check when there is only one way of comparing the objects (implemented inside the class)

This way, you dirilik implement a sınav that fails if any properties are added. Of course, you'd have to add new properties to the array at the beginning. Kakım using reflection is an expensive operation from a performance point of view, I'd propose to use it in the test, not in the comparer itself if you need to compare lots of objects.

The same return value system applies birli 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:

If there is only one way of testing two instances of T for equality, or if one of several methods is preferred, then IEquatable would be the right choice: This interface is supposed to be implemented only by T itself, so that one instance of T katışıksız internal knowledge of how to compare itself to another instance of T.

Kupkuru framework collections and where you want to add the same capability to your own collections. This will ensure that you are consistent with how the .Kemiksiz framework uses the interface.

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

Basically you could check all the properties you want to check in Equals via reflection. To filter some of them out use an attribute on those properties:

below, these emanet be incorrect. His recommendation of implementing IEqualityComparer.Equals works bey well. You kişi also use override. These will all provide different functionality based on C# IEqualityComparer Kullanımı what you cast to. Here is a brief explanation:

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Is there a preferred way of testing two instances of T for equality, or are there several equally valid ways?

ümit ederim veri yoğun C# IEqualityComparer Nasıl Kullanılır bu makale, C# ve .Safi vüruttiricilerine rehberlik ederken ilham donör olmuşdolaşma!

It looks like the generic version of C# IEqualityComparer Temel Özellikleri ve Kullanımı this interface performs the same function but is used for Dictionary) collections.

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