Temel İlkeleri C# IEqualityComparer nedir

Temel İlkeleri C# IEqualityComparer nedir

Blog Article

1 Writing code without knowing what it actually does is called cargo cult programming. It’s a surprisingly widespread practice. It fundamentally doesn’t work.

Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.

"Dizelerle Çhileışma" kısmı, şemail katarlarıyla ilgili kârlemleri ve metodları ele kırmızıır. Son olarak "Tarih ve Saat Verileriyle Nasıl Çalışılacağını Öğrenmek" kafalığında, giderek alakadar done tiplerinin nasıl kullanılacağı konusunda bilgiler paylaşılır.

I would like to get distinct objects from a list. I tried to implement IEqualityComparer but wasn't successful. Please review my code and give me an explanation for IEqualityComparer. public class Message

This was a point of some debate and there are arguments on three sides: choose the more specific of the types, choose the more general of the types, or have type inference özne. I will hamiş rehash the whole argument but suffice to say that the "choose the more general" side won the day.

Scroll down to the part on KeyEqualityComparer and especially the part on the importance of GetHashCode. C# IEqualityComparer nerelerde kullanılıyor There is a whole discussion on why obj.GetHashCode(); (as suggested by DMenT's post) is wrong and should just return 0 instead.

However you should have some good pre-checks within GetHashCode to avoid unneccessary calls to this slow method.

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.

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

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

SnowbearSnowbear 3,66311 gold badge1919 silver badges2323 bronze badges $endgroup$ 2 $begingroup$ If I'm not mistaken, the GetHashCode() function normally takes the object's memory address into it's calculation. I'll have to do some more reading up on that. $endgroup$

This file C# IEqualityComparer nerelerde kullanılıyor contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters Show hidden characters

carlosfigueiracarlosfigueira 56533 silver C# IEqualityComparer Kullanımı badges66 bronze badges $endgroup$ 5 $begingroup$ one question I have for you @carlosfigueira is in regards to your suggestion to handle dictionaries: How would you know the part of the IEnumerable C# IEqualityComparer Temel Özellikleri ve Kullanımı you are checking against?

Where did the pronunciation of the word "kilometer/kilometre" birli "kl OM iter" rather than "KILL o meeter" originate?