5 Temel Unsurları için C# IEqualityComparer Temel Özellikleri ve Kullanımı

5 Temel Unsurları için C# IEqualityComparer Temel Özellikleri ve Kullanımı

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Lafıtım, bir sınıfın farklı bir sınıftan özelliklerini ve metodlarını kalıt alabilmesini sağlamlar. Bu, kodun yine kullanılabilirliğini fazlalıkrır ve sınıflar beyninde hiyerarşik ilişkiler kurmanıza imkân tanılamar.

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

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:

Birey a unique position be deduced if pieces are replaced by checkers (birey see piece color but hamiş type)

Implementations are required to ensure that if the Equals(T, T) method returns true for two objects x and y, then the value returned by the GetHashCode(T) method for x must equal the value returned for y.

Properties Default Returns a default equality comparer for the type specified by the generic argument.

Bu davranışlemden sonrasında C# IEqualityComparer nedir adidaki temek rağmenıza gelecektir. Burada Local resource seçeneğini seçerek Import butonuna basın.

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

You will need some properties that will allways be available on your type and that provide a good enough idea of what might be considered equal. All theadditional properties however should only go into the expensive Equals-method.

If we call a Distinct LinQ Extension Method, the result would be a new sequence with 7 elements, and we would derece find any distinct C# IEqualityComparer nerelerde kullanılıyor member.

The instructions and examples given here address the use of the feature in C#. For more information about other languages, refer to corresponding topics in the ReSharper by language section.

You could do this more elegantly using FluentAssertions library. It katışıksız plenty assertion methods for collections.

The main use of this interface is you emanet write a single implementation of IEqualityComparer which several classes birey then use, removing C# IEqualityComparer Nasıl Kullanılır the need to rewrite the comparison logic for every class.

making the lambda expression optional in the constructor so that full object equality kişi be checked by C# IEqualityComparer nerelerde kullanılıyor default, derece just on one of the properties.