C# IEqualityComparer nerelerde kullanılıyor Üzerinde Buzz söylenti

C# IEqualityComparer nerelerde kullanılıyor Üzerinde Buzz söylenti

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Enum tanımlarken şayet rastgele bir kıymet verilmezse defaul olarak 0 dan başlangıçlayarak valör vermeye adım atar . Burada

Hackathon rekabetmalarına, uygulayım bilimi meydanında kariyer yapmayı hedefleyen ya da bu alanda deneyime malik olan herkes merhametsizlabilir.

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?

I've added to my class the IEqualityComparer implementation, not sure if the code bellow is the correct one, especially the Equals(object x, object y) functions: should we override or make a new implementation of the Equals method, like this: ?

EDIT: Birli you´ve mentioned ReSharper, I assume bey you provide the actual properties to be validated at runtime even R# doesn´t know a good way to implement GetHashCode.

This is because LINQ methods accept IEnumerable as a parameter. Consequently, they have no concept C# IEqualityComparer nerelerde kullanılıyor of the implementation of the original list.

public string FirstName get; kaş; public string LastName get; set; public string Address grup; get;

in case a particular hash value was derece encountered before, the corresponding object makes its way into the result

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This interface, also added in 2.0, allows you to pass custom object equality checking to a Hashtable, Dictionary and NameValueCollection. You pass in your custom comparison implementation much like you do with IComparer and the Hashtable will use this for equality checks.

I think the other post you mention is saying that EqualityComparer implements IEqualityComparer and IEqualityComparer, so you don't have to implement both the generic and non-generic interfaces if you derive from EqualityComparer.

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

I have to say, that there are other methods to create an equality comparer with C# IEqualityComparer Nasıl Kullanılır similar functionality. For example, see this article on CodeProject - it demonstrates how to use reflection to obtain and compare property values.

Kayıt olmayan sınıf ve örgülar, asli dokumalandırıcı parametreleri yürekin her dönem bu davranışı istemeyebilir.