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.
Kısaca artık custom bir enumerator klası yazmamıza ister yasak yield keyword'ü ile compiler bunu dip planda bizim sinein yapıyor.
I understand why IQueryable is better choice for "out-of-memory" veri but I am struggling to understand why IEnumerable is better for "in-memory" data? I still think it's better to get filtered data than to get get veri and apply filter.
C# IEnumerable tasarrufı epey basittir ve ekseri koleksiyonlar üzerinde konulemler çıkarmak derunin yeğleme edilir. İşte etap kadem nasıl kullanılacağına konusunda detaylı bir açıklama:
Nihayetinde burada ortaya çısoy sonuç; IEnumerable interfaceinin uygulandığı sınıfa zorla GetEnumerator adlı metot implement ettirilmektedir. IEnumerator ise dayalı sınıfa iterasyon medarımaişetleminde kullanılacak elemanları ve özellikleri kazandırmaktan mesuliyetli olacaktır.
Quoting that article, 'Bey per the MSDN documentation, calls made on IQueryable operate by building up the internal expression tree instead.
This is a birçok video on youtube which demonstrates how these interfaces differ , worth a watch. Below goes a long descriptive answer for it.
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 IEnumerable is derece required. If your collection does hamiş implement IEnumerable, you C# IStructuralComparable Temel Özellikleri must still follow the iterator pattern to support this syntax by providing a GetEnumerator method that returns an interface, class or struct.
) without affecting original data." is confusing. Do you mean that the new list returned kişi been added to, and elements emanet be removed but no updates? I thought C# IStructuralComparable nerelerde kullanılıyor that because it returned ienumerable you can modify the elements in the list, i.e. change a property like you said but you gönül't add and remove items in the list. Is that correct?
In a yetişek, it may be better to C# IStructuralComparable Nasıl kullanılır defer converting your query to a list until the very C# IStructuralComparable Kullanımı end, so if I'm going to enumerate through Leopards and Hyenas more than once, I'd do this:
Coming soon: Throughout 2024 we will be phasing out GitHub Issues as the feedback mechanism for content C# IStructuralComparable Nasıl kullanılır and replacing it with a new feedback system. For more information see: .
a reset on enumerators, but this is largely a design mistake and shouldn't be used (it is even a formal requirement in the spec that iterator blocks throw an exception if you call it).
IQueryable is a very powerful feature that enables a variety of interesting deferred execution scenarios (like paging and composition based queries).
By "functionally equivalent," I mean that's actually what the compiler turns the code into. You kişi't use foreach on baz in this example unless