Implementation of IEnumerable is generally the preferred way for a class to indicate that it should be usable with a "foreach" loop, and that multiple "foreach" loops on the same object should operate independently.

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Birli per other answers, the evaluation of the result was deferred until calling ToList or similar invocation methods for example ToArray.

Now List implements IEnumerable, but represents the entire collection in memory. If you have an IEnumerable and you call .ToList() you create a new list with the contents of the enumeration in memory.

In C# 4 and earlier the object obj; is declared outside of the while loop, this changes the behavior of the loop when working with things that capture variables like anonymous functions.

Basically it saf a method to get the next item in the collection. It doesn't need the whole collection to be in memory and doesn't know how many items are in C# IStructuralComparable Kullanımı it, foreach just keeps getting the next item until it runs out.

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

Koleksiyonlar Arasında Gezinmeyi Katkısızlar: IEnumerable, koleksiyonlar beyninde kolaylıkla gezinmenizi C# IStructuralComparable Temel Özellikleri sağlamlar. GetEnumerator metodu ile koleksiyonun her bir elemanına erişebilir ve bu elemanlar üzerinde işlem yapabilirsiniz.

Usually you don't use IEunumerable directly. It is the base class for a number of other collections that you are more likely to use. IEnumerable, for example, provides the ability to loop through a collection with foreach.

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Evet sarıklı, onca yazdın çizdin anladıkta iki satır IEnumerable yahut IEnumerator interfacelerini kullanmadın?

Joel CoehoornJoel Coehoorn 410k114114 gold badges576576 C# IStructuralComparable nerelerde kullanılıyor silver badges808808 bronze badges 3 3 The key of IEnumarable is that the backing collection is derece enumerated until specifically expanded, be it a foreach or accessor via an indexer. Unfortunately IEnumarable seems to be blindly used as the lowest interface which now causes problems with asynchronous data manipulation (e.

Below mentioned small test might help you understand one aspect of difference between IQueryable and IEnumerable. I've reproduced this answer from this post where I was trying to add corrections to someone else's post