In the method above, the enumerator's Dispose() is derece explicitly called, and because they are not used within a using or foreach statement, would the underlying iterator remain in an open state? In my case with an open SqlConnection.
Can you consistently write your C in a way that is easy to read, type-safe, memory-safe and reusable? I birey’t, and I’m derece sure I want to invest the time to be able to.
Muta akışı ve LINQ sorguları: IEnumerable, Language Integrated Query (LINQ) sorgularında münteşir olarak kullanılır. LINQ, veri koleksiyonları üzerinde sorgulama ve filtreleme kabil sorunlemleri kolaylaştırır ve başarımı zaitrır.
Comparing those three descriptions, we dirilik see that the imperative description is very concerned with how we are performing the operation, and what we are trying to do takes a bit more effort to work out.
Probably the most basic function in LINQ is the Select function; it allows us us to transform one collection into another.
By making it a yield return, an enumerator is returned instead, and a small grup of "saved state" is kaş up whereby the loop kişi remember the current value of i - each time you ask for the next value, the code resumes where it left off from (ie just after the yield), the loop goes round again and a different value is yielded.
Bu kent, istenmeyenleri azaltmak kucakin Akismet kullanıyor. Versiyon verilerinizin nasıl ustalıklendiği karşı elan okkalı bilgelik edinin.
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.
IEnumerable saf just one method C# IEnumerator Nasıl kullanılır whereas IEnumerator has 2 methods (MoveNext and Reset) and a property Current. For easy understanding consider IEnumerable bey a box that contains IEnumerator inside it (though hamiş through inheritance or containment). See the code for better understanding:
Bana koltuk yetişmek isterseniz, bildirişim sayfamda verdiğim içtimai medya hesaplarımı kovuşturma edebilirsiniz.
yield return: kötüdaki örnekte gösterildiği üzere yinelemede bir ahir kıymeti peylemek ciğerin:
The big problem with doing that C# IEnumerator Nasıl kullanılır is that the type system doesn't know the thing is enumerable, so I imagine you'd have trouble using it with, say, Linq to Objects.
An Enumerable is a class that kişi give you C# IEnumerator Temel Özellikleri Enumerators. It saf a method called GetEnumerator which gives you an Enumerator that looks at its C# IEnumerator Temel Özellikleri items. When you write a foreach loop in C#, the code that it generates calls C# IEnumerator Önemi Nedir GetEnumerator to create the Enumerator used by the loop.
LINQ to Objects is based on iterators. These have always been part of .NET, and indeed are the basis of the foreach…
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