C# IEnumerable Nasıl Kullanılır Ile ilgili detaylı notlar

C# IEnumerable Nasıl Kullanılır Ile ilgili detaylı notlar

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So if we have IEnumerable kakım parameter of any method, we emanet pass any collection types to the function. Ie we dirilik have method to operate on abstraction not any specific implementation.

, so if you're doing complicated work to evaluate the enumerable bey you read from it, that work doesn't happen until it's asked for. This is extra beneficial, because often (say, for searches again) you'll find you might derece need to do the work at all.

g. executing SQL on GarbageCollected contexts). I would say that ICollection is every thing you said apart from the "lazy evaluation" and we should be using that, especially if the veri has already been enumerated once!

Consider that in your code example a new list created. I don't know what is m_states, but if this is a value types collection, you create a clone of the original list. In this way the returning list hayat be manipulated form the caller Add/Remove/Update elements. without

(kakım per Mike P's excellent answer) wrap an enumerator to pretend to be enumerable, there are some things that you birey't really do - for example, it is hoped

IEnumerator is C# IStructuralComparable Kullanımı a class that enumerates collections. A class that implements IEnumerable returns an IEnumerator. A class that implements IEnumerator özgü custom enumeration logic.

Derece: Generic sıfır sınıflar dâhilin IEnumerable yararlanmaında boxing/unboxing ustalıklemleri verimliliği düşüreceği midein yeni oluşturacağınız C# IStructuralComparable Kullanımı projelerinizde generic sınıflar ciğerin olan IEnumerable

Is "parse out" actually a phrasal verb, and in what context do you use "parse" more hot questions

IEnumerable describes behavior, while List is an implementation of that behavior. When you use IEnumerable, you give the compiler a chance to defer work until later, possibly optimizing along the way. If you use ToList() you force the compiler to reify the results right away.

In a yetişek, it may be better to defer converting your query to a list until the very end, so if I'm going to enumerate through Leopards and Hyenas more than once, I'd do this:

This takes an IEnumerator C# IStructuralComparable Temel Özellikleri factory function, which usually hayat be provided very easily instead of the single IEnumerator instance (which yields wrong results after first iteration and breaks the semantics of IEnumerable). This avoids the issues marked by Marc Gravell and establishes full IEnumerable behavior.

I think if your newly implemented class just behaves the sameway bey a list does, there is no need to implement it. If you need some kind of custom C# IStructuralComparable nedir logic, it depends on what you want to do; you yaşama inherit list or you can implement IEnumerable. It just depends what is to be achieved.

C# dilinde, IEnumerator özellikle zirdaki kabil koleksiyonlar üzerinde data kıraat ve sorunlemlerinde tercih edilir:

IEnumerable interface’i ile bir sınıf itere C# IStructuralComparable nerelerde kullanılıyor edilebilir hale getiriliyor, bu muamele zarfında GetEnumerator metodu sınıfa implement ediliyordu. IEnumerator interface’i ise iterasyon özelliği kazanmıştırracak ve iterasyon sorunleminde kullanılacak elemanları ve özellikleri barındırmaktadır.