Hakkında C# IEnumerator nerelerde kullanılıyor

Hakkında C# IEnumerator nerelerde kullanılıyor

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When you use a yield return statement within a method "some magic happens" whereby it's derece a return in the classic sense, but creates a facility whereby the code dirilik resume from where it left off (calling for the next item out of the returned enumerator will cause the code to resume from after the yield, with all the state it had before, rather than starting over).

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So I guess the comment is aimed at the fact that the code doesn't require any additional classes (aside from the class that holds the method)

If the last call to MoveNext returned false, Current is undefined. You cannot takım Current to the first element of the collection again; you must create a new enumerator instance instead.

The following code example demonstrates the implementation of the IEnumerable and IEnumerator interfaces for a custom collection.

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However, none of this should be needed because it's unusual to have an IEnumerator that doesn't come with an IEnumerable that returns an instance of it from its GetEnumerator method.

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When using foreach to enumerate via an iterator block that contains a C# IEnumerator Kullanımı using C# IEnumerator Kullanımı statement, are the resources disposed of when control leaves the loop?

IEnumerable: This is an interface that provides a method to retrieve an enumerator for a collection. Any class that implements IEnumerable dirilik be used with a foreach loop.

Perhaps because of my belief that C# wasn’t here C# IEnumerator nedir to stay, I resisted learning and using some of the more esoteric features. They seemed frivolous, confusing, and most damning of all, slow. Chief among these was yield and the library C# IEnumerator Kullanımı that it enables, LINQ.

An Enumerable is a class that emanet give you Enumerators. It özgü a method called GetEnumerator which gives you an Enumerator that looks at its items. When you write a foreach loop in C#, the C# IEnumerator Kullanımı code that it generates calls GetEnumerator to create the Enumerator used by the loop.

This implementation puts a whole lot of work into making sure that this never happens for the EnumeratorEnumerable type. There are two EnumeratorEnumerableModes: