5 Temel Unsurları için C# IEqualityComparer Temel Özellikleri ve Kullanımı

5 Temel Unsurları için C# IEqualityComparer Temel Özellikleri ve Kullanımı

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Enum teşhismlarken şayet rastgele bir ayar verilmezse defaul olarak 0 dan mirlayarak fehamet vermeye adım atar . Burada

If you need to support custom GetHashCode() functionality, use the alternative constructor to provide a lambda to do the alternative calculation:

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In other words support the use of this interface if you are developing a custom collection and you want to allow your consumers to control equality which is used in a number of LINQ and collection related methods (eg. Sort).

You have to change the comparer to also check the new properties. You could achieve this by using reflection but that would make your comparer insanely slow.

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Tamam her şeyi teşhismladık çok kıvrak temel taksir geçelim pratikte bunu nasıl yapacağız? Listemizi zaten teşhismlamıştık kaldığımız yerden devam edelim.

There are many cases where one might want to have a Dictionary locate objects using something other than 100% equivalence. Bey a simple example, one may wish to have a dictionary which matches in case-insensitive fashion. One way to accomplish that would be to convert strings to a canonical uppercase C# IEqualityComparer nedir form before storing them in the dictionary or performing a lookup. An alternative approach is to supply the dictionary with an IEqualityComparer which will compute hash-codes and check for equality in some sort of case-independent function. There are some circumstances where converting strings to canonical form and using that form whenever possible will be more efficient, but there are others where it's more efficient to only store the string in its original form.

into C# IEqualityComparer Nasıl Kullanılır account, so the fact that it chooses a type that is incompatible with the assigned-to variable is hamiş it's business.

The instructions and examples given here address the use of the feature in C#. For more information about C# IEqualityComparer nedir other languages, refer to corresponding topics in the ReSharper by language section.

One feature I wish .Kupkuru had which would improve the usefulness of such dictionaries would be a means of requesting the actual key object associated with a given key (so if the dictionary contained C# IEqualityComparer nerelerde kullanılıyor the string "WowZo" bey a key, one could look up "wowzo" and get "WowZo"; unfortunately, the only way to retrieve an actual key object, if TValue doesn't contain a redundant reference to it, is to enumerate the entire collection).

Biz Box Listemizi istediğimiz şeylere nazaran kategorize buyurmak istediğimiz ciğerin kendimize bir kıstas belirlememiz gerekiyor bunu bizim için IEqualityComparer Interface’i mimariyor. Dictionary’imizi oluştururken IEqualityComparer yardımıyla oluşturduğumuz Class’ın instance’sını ekliyoruz. Sonrasında Dictionary teker tekerlek mevrut verilere bizim verdiğimiz algoritmaya nazaran falyor. Öncelik olarak oluşturduğumuz Class’da ki GetHashCode()’ a gidiyor oradan HashCode’u kızılıyor eğer önceki eklediği Key’lerde bu HashCode yoksa duraksız olarak eklemesini kuruluşyor.

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