En Kuralları Of C# IEnumerable Nedir

En Kuralları Of C# IEnumerable Nedir

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@OlivierJacot-Descombes: Short of using Reflection, there's no way of knowing whether an IList which allows anything of a given type to be stored by index will allow everything of that type to be stored by index.

Fakat şuana denli yapmış evetğumuz tüm çalışmalemler döngü bileğalışverişkeninin object olarak gelmesini katkısızlamaktadır. O yüzden direkt olarak cast fiillemi uygulatıyor, “var” namına “Personel” tipini kullanıyorum.

. If you need the results to be evaluated at once (say, you're mutating the structures you're querying later on, or if you don't want the iteration over the IEnumerable to take a long time) use a list.

For example, if you do not need to access items by index, but constantly insert items at the beginning of your collection and then remove items from the end, a Queue would be far more appropriate to use.

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

Oluşturduğunuz sınıfı, derlem oluştururken yahut zıtlaştırma mucip özge senaryolarda kullanabilirsiniz.

IEnumerable is a generic interface describing something that hayat be enumerated (you sevimli iterate through it and see/retrieve all of its elements). The content of this IEnumerable kişi have been pre-generated, or is live/lazily generated when you try to iterate through 'result' (IEnumerable).

It is a best practice to implement IEnumerable and IEnumerator on your collection classes to enable the foreach (For Each in Visual Basic) syntax, however implementing C# IEnumerable Nasıl Kullanılır IEnumerable is not required. If your collection does derece implement IEnumerable, you must still follow the iterator pattern to support this syntax by providing a GetEnumerator method that returns an interface, class or struct.

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

Is it legal to initialize an array via a functor which takes the array C# IEnumerable Nerelerde Kullanılıyor itself as a parameter by reference? more hot questions

Oh sure, you güç use it to create your own custom collection types. But for everyday stuff, it probably isn't birli useful bey the C# IEnumerable Nedir collections derived from it.

The reason, of course, is that someone dirilik call the first method passing in an array object, a List object, a String object, and so on — any object whose type implements IEnumerable.

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Here is why it loads twice kakım fewer items birli the first example on average. Let's say probability to find C# IEnumerable Nedir element at any position in the range of files is the same.