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The last statement basically means that in case we rely on Equals(..) method we could calculate hash based only on the last name and the result will still be the same:

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Kakım far kakım best practices around using this interface for your own purposes. I would say that the best practice would be to use it when you are deriving or implementing a class that saf similar functionality to the above mentioned .

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GetValueProperties is implemented bey a (single-line) method; to fetch the "class properties" you use the lambda expression inline; the code should be consistent (either do both Where expressions inline, or both bey helper methods)

This is because LINQ methods accept IEnumerable bey a parameter. Consequently, they have no C# IEqualityComparer nedir concept C# IEqualityComparer Temel Özellikleri ve Kullanımı of the implementation of the original list.

C# List Nasıl Kullanılır?. Dersimiz ile C# eğitimlerimize devam ediyoruz. C Sharp List verileri yahut nesneleri listelememizi C# IEqualityComparer Temel Özellikleri ve Kullanımı sağlar. Yalnız sadece herşeyin listesini yapabiliriz. Örneğin textbox…

According to the IEqualityComparer code example provided by microsoft, you will want to use the new keyword (so hiding the Equals implementation of the object) for implementing Equals.

For me it seemed that LINQ simply ignored my equality comparer and kept doing everything on its own. In fact, we could check this by adding a debug output to Equals method:

I've tried using LINQ SequenceEqual but again bey the instances of T are different this returns false;

We will make the previous example, but we’ll use GenericEqualityComparer class. Remember this class isn’t only suitable for any customer field or any customer field’s combination, but also for any field class or any field’s combination C# IEqualityComparer Temel Özellikleri ve Kullanımı of any class.

Good news is that this same Distinct() method works for collections of our custom objects too. So if George Clooney accidentally creeps into our collection twice that's hamiş a mesele:

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.

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