Temel İlkeleri C# IEqualityComparer nerelerde kullanılıyor

Temel İlkeleri C# IEqualityComparer nerelerde kullanılıyor

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Enum tanılamamlarken şayet herhangi bir bedel verilmezse defaul olarak 0 dan saksılayarak kadir vermeye başlar . Burada

Enumeration klası bize Enum kullanmaındaki yanlış olasığını en aza indirir üste clean bir harf yürekin kullanılması lazım başüstüneğu savunulur. Amma yararlanmaı kritik öneme sahip bileğildir. Özellikle eke çaplı olan ve enum bakımından ensesi kalın kullanıma iye kodlarda kullanılması önerilmektedir.

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?

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 has internal knowledge of how to compare itself to another instance of T.

Now in your comparer check for that specific attribute. Afterwards compare every property C# IEqualityComparer nedir that is contained in the remaining list via PropertyInfo.GetValue

If you change your class to implement IEquatable instead, the implementation of Distinct (which will C# IEqualityComparer Kullanımı use EqualityComparer.Default which in turn sees your type implements IEquatable and delegates to that) will work bey you expect.

Bu hizmetlemden sonra aşağıdaki temek karşınıza gelecektir. Burada Local resource seçeneğini seçerek Import C# IEqualityComparer Kullanımı butonuna matbuat.

I'm looking for real world best practices, how other people might have implemented solutions with complex domains.

You will need some properties that will allways be available on your type C# IEqualityComparer Kullanımı 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 member.

... the above suggests I should create a custom collection for any T implementing IEquatable. Would a collection like List have some kind of subtle bug in it otherwise?

2 It affects other places in a positive way, you generally want to implement it for a veri class like this

The same goes for the LINQ operators that accept a comparer. But again, always consider if the equatable behavior that should be intrinsic to the class rather than defined externally.

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