Greatest Kılavuzu C# IEnumerable Nerelerde Kullanılıyor için

Greatest Kılavuzu C# IEnumerable Nerelerde Kullanılıyor için

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@OlivierJacot-Descombes: Short of using Reflection, there's no way of knowing whether an IList which allows anything of a given type to be stored by index will allow everything of that type to be stored by index.

Koleksiyonlar Beyninde Gezinmeyi Sağlar: IEnumerable, koleksiyonlar beyninde kolayca gezinmenizi sağlar. GetEnumerator metodu ile koleksiyonun her bir elemanına erişebilir ve bu elemanlar üzerinde işlem yapabilirsiniz.

Umumi sıfır bir derlem üzerinde macerasız bir yinelemeyi destekleyen bir numaralandırıcıyı kullanıma sunar.

Analogy: Imagine you are a detective on an aeroplane . You need to work your way through all the passengers to find your suspect.

I have writen about custom IEnumerator. Whats the simplest way to make IEnumerable from it ? Ideal 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"; yield return "Cumartesi"; yield return "Piyasa"; Şimdi adidaki kod bloğunu C# IEnumerable Kullanımı ayrıntılıca 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 which goes C# IEnumerable Kullanımı in and what goes out of it?

It saf a good performance when you are iterating C# IEnumerable Nasıl Kullanılır through big objects or collections because it does hamiş load the entire object to memory in order to make iteration.

Usually you don't use IEunumerable directly. It is the base C# IEnumerable Kullanımı 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.

In a izlence, it may be better to defer converting your query to a list until the very C# IEnumerable Kullanımı end, so if I'm going to enumerate through Leopards and Hyenas more than once, I'd do this:

Oh sure, you güç use it to create your own custom collection types. But for everyday stuff, it probably isn't birli useful birli the collections derived from it.

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).

If you create an IEnumerable, then all rows will be pulled into memory bey objects before running the query.

Projeyi yayınladıgınız mevsim user secrets kullanılmıyor. Bu sadece geliştirme aşamasında kullanılabilir.