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.
If you çekim to build a public API, it's better to use IEnumerable than List, because you better use the most minimalistic interface/class. List lets you access objects by index if that's required.
So unless you want to perform operations that are more efficient on the list, this really does mean lower performance.
There are many differences but let us discuss about the one big difference which makes the biggest difference. IEnumerable interface is useful when your collection is loaded using LINQ or Entity framework and you want to apply filter on the collection.
I have writen about custom IEnumerator. Whats the simplest way to make IEnumerable from it ? ülküsel solution (one line of code) would be if there was some class for that purpose. Or do I have to create my own ?
static public IEnumerable VerileriGetir() yield return "Pazartesi"; yield return "Salı"; yield return "Çarşamba"; yield return "Perşembe"; yield return "Cuma namazı"; yield return "Cumartesi"; yield return "Pazar"; Şimdi zirdaki kod bloğunu detaylıca inceleyelim.
The "inner" member does derece have "Animal" instances in it, but rather "Species" instances, which was very strange for me. The "outer" member does contain "Animal" instances. I presume that the two delegates determine C# IStructuralComparable Nasıl kullanılır which goes in and what goes out of it?
IEnumerable gives you the way to implement your own logic of storing and iterating over object collection
IEnumerable describes behavior, while List is an implementation of C# IStructuralComparable Temel Özellikleri that behavior. When you use IEnumerable, you give the compiler a chance to defer work until later, possibly optimizing along the way. If you C# IStructuralComparable Kullanımı use C# IStructuralComparable nerelerde kullanılıyor ToList() you force the compiler to reify the results right away.
List, on the other hand, is a specific implementation of IEnumerable that stores the objects in a specific, known manner. Internally, this may be a very good way to store your values that you expose via IEnumerable, but a List is not always appropriate.
Any idea why the Enumerable is "split" into "inner" and "outer"? This happens when I inspect the element in debug/break mode via mouse. Is this perhaps Visual Studio's contribution? Enumerating on the ışıntı and indicating input and output of the Enum?
Umarım bu hatdan sonrasında iki tipin neden, nerede ve nasıl kullanılması gerektiğine üzerine kifayetli bilgiye mevla olmuşsunuzdur.
Bu interface, uygulandığı sınıfa GetEnumerator adlı bir metot kazandırır ve bu metot geriye IEnumerator interface’ini implement fail bir dershane döndürür.
C#’ta türlü türlü komutlar mevcuttur. Bazenları natürel olarak ilk etaplarda zait yararlanma meydanını sezdirmeselerde, dile olan aşinalık ilerledikçe mantığını ve varlığını C# IStructuralComparable Temel Özellikleri henüz net anladığımız keywordlerin değeri artmaktadır.