C# IEnumerator nerelerde kullanılıyor A Gizli Silah

C# IEnumerator nerelerde kullanılıyor A Gizli Silah

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I use Enumerator parameters like in C++ forward_iterator concept. I agree that this sevimli lead to confusion birli too many people will indeed assume Enumerators are /like/ Enumerables, but they are derece.

Can you consistently write your C in a way that is easy to read, type-safe, memory-safe and reusable? I gönül’t, and I’m derece sure I want to invest the time to be able to.

Say we have a bunch of user objects we want display the usernames for, and we’ve been tasked for writing the method GetUserNames :

Bir izlence zarfında çeşitli data koleksiyonları kullanıldığında, bu koleksiyonlardaki verilere erişmek ve işlem icra etmek gereklidir. IEnumerator, bu noktada devreye girerek koleksiyonların elemanlarını tenha hiç dolaşmamızı ve işlem yapmamızı esenlar.

sehesehe 387k4747 gold badges458458 silver badges651651 bronze badges 2 I like the idea. I agree that this is the only 'correct' implementation. But I think the Blocking mode is a bit overkill. Throwing on a concurrent enumeration should be good for most use cases.

The enumerator does not have exclusive access to the collection; therefore, enumerating through a collection is intrinsically not a thread-safe procedure. Even when a collection is synchronized, other threads kişi still modify the collection, which causes the enumerator to throw an exception.

So you have a common IEnumerator-implementing class for all ten, and each collection just özgü to implement IEnumerable using that enumerating class. It's about separation of concerns, treating holding veri and enumerating veri birli C# IEnumerator nedir separate operations.

Take a moment to consider these classes for a bit. There are some interesting and powerful properties:

C# Formlar arası kararsız ile veri sevk konusu en pıtrak kullanılan yöntemdir. Ekseriyetle 2 form arasında kullanılır. Şahsen ben en bir küme 2 form ortada kullanılmasını tavsiye ediyorum. Elbette istisnalar nanay değil.

The basic reason you can't go that direction C# IEnumerator Temel Özellikleri (IEnumerator to a IEnumerable) is that IEnumerable represents a kaş that güç be enumerated, but IEnumerator is a specific enumeratation over a grup of items -- you sevimli't turn the specific instance C# IEnumerator Temel Özellikleri back into the thing that created it.

In fact, you might even think of methods that contain C# IEnumerator Temel Özellikleri yield bey a compact way of writing state machines. We’ll explore this more in later articles.

Enumerators C# IEnumerator Kullanımı güç be used to read the data in the collection, but they cannot be used to modify the underlying collection.

In this case you have to use yield return new WaitForSeconds because that's how WaitForSeconds is intended to work. Yielding gives up an enumerator to the calling method, which is then free to enumerate it.

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