Saçma olduğu karınin bu örneği hiç yazmayacaktım lakin hem istedikten sonra bir şekilde istediğimizi elde edebileceğimizi hemde “her saat elan kısaltarak yolu vardır” anlayışını çıkarmak karınin çallıkıştırıp açmak istedim.
Pek çok programlama dili ile teknolojisine geniş perspektiften yaklaşarak, yeni başlayanlardan profesyonellere kadar her seviyeden bireye yaraşır muhtevaeriklerle donatılmıştır.
If a reference is no longer publicly available, should you include the proofs of the results you cite from it?
IEqualityComparer is an interface which is used to find whether an object is equal or derece. We will see this in a sample where we have to find the distinct objects in a collection. This interface will implement the method Equals(T obj1,T obj2).
The IEqualityComparer interface supports only equality comparisons. Customization of comparisons for sorting and ordering is provided by the IComparer interface.
If you change your class to implement IEquatable instead, the implementation of Distinct (which will use EqualityComparer.Default which in turn sees your type implements IEquatable and delegates to that) will work birli C# IEqualityComparer nedir you expect.
It is essentially the same for this purpose with one subtle C# IEqualityComparer Nasıl Kullanılır difference. In your first example you override Equals C# IEqualityComparer Temel Özellikleri ve Kullanımı using a parameter of type Object and then have to cast it to Customer, however, in your second example you are able to have the parameter of type Customer which means there is no need to cast.
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.
C# sınıflarını tarif etmek ciğerin "class" anahtar kelimesi kullanılır. Süflidaki örnek, bir "Person" dershaneı teşhismlar:
I've tried using LINQ SequenceEqual but again as the instances of T are different this returns false;
Gönül apophatic theology offer a coherent resolution to the "sorun of the creator C# IEqualityComparer nedir of God"? more hot questions
You could do this more elegantly using FluentAssertions library. It katışıksız plenty assertion methods for collections.
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.
making the lambda expression optional in the constructor C# IEqualityComparer nedir so that full object equality gönül be checked by default, not just on one of the properties.