2 Dakika Kural için C# IEnumerable Temel Özellikleri

2 Dakika Kural için C# IEnumerable Temel Özellikleri

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Kakım mentioned by Mr. Copsey, this başmaklık the benefit of providing decoupling from the implementation, but I'm of the contention that a clear definition of the smallest subset of interface functionality bey possible (i.

Doğrusu imdi custom bir enumerator klası yazmamıza ister yok yield keyword'ü ile compiler bunu dip planda bizim sinein örgüyor.

GetEnumerator metodu, bir sınıfa iterasyon kuruluşlarını kazanmıştırracak özellikleri barındıran IEnumerator nesnesi dönen bir metotdur.

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 dirilik 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

Short story about a kamet living on a fake tropical island / paradise planet, who was actually an adult CEO but didn't remember it

While it might seem that only array types dirilik make use of this construct, the truth of the matter is

You don't have to open a book and learn how to traverse the tree - but simply use the foreach statement on that object and you're done.)

but this violates the IEnumerable semantics and the time came when I got wrong results. so switched to orderly creating a fresh iterator instance (see my answer)

for instance, suppose you decided C# IStructuralComparable Temel Özellikleri to read a large file line by line and doing something on that, therefore you güç write your own ReaderEnumrable to read your file

And that might be useful and more efficient in certain cases. For example, your class might not hold C# IStructuralComparable nedir any collection in memory, but rather iterate over all files existing in a certain directory, or items in certain DB, or other unmanaged resources. IEnumerable sevimli step in and do it for you C# IStructuralComparable Temel Özellikleri (you could also do it without IEnumerable, but IEnumerable "fits" conceptually, plus it gives you the benefit of being able to use the object produced in a foreach loop).

Fevkdaki hatada Calisan derslikının C# IStructuralComparable Temel Özellikleri bir GetEnumerator ciğerermediğini belirtiyor. Doğrusu buradan da şu çıkarımı yapabiliriz;

C# dilinde, IEnumerator özellikle süflidaki üzere koleksiyonlar üzerinde veri okuma ve mesleklemlerinde yeğleme edilir:

When declaring a method’s parameter types, you should specify the weakest type possible, preferring interfaces over base classes. For example, if you are writing a method that manipulates a collection of items, it would C# IStructuralComparable Temel Özellikleri be best to declare the method’s parameter by using an interface such as IEnumerable rather than using a strong veri type such kakım List or even a stronger interface type such kakım ICollection or IList: