Done temizışı ve LINQ sorguları: IEnumerable, Language Integrated Query (LINQ) sorgularında geniş olarak kullanılır. LINQ, data koleksiyonları üzerinde sorgulama ve filtreleme kabil hizmetlemleri kolaylaştırır ve performansı artırır.
I noticed that if I use IEnumerable, when I debug and inspect "baskın", which in that case is the IEnumerable, it saf some interesting members: "inner", "outer", "innerKeySelector" and "outerKeySelector", these last 2 appear to be delegates.
Umumi sıfır bir derlem üzerinde basit 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.
This will create a new list element for each element in memory, enumerating the IEnumerable and is thus less performant if you only enumerate once - but safer and sometimes the List methods are handy (for instance in random access).
Basically it has 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 C# IEnumerable Nasıl Kullanılır how many items are in it, foreach just keeps getting the next item until it runs out.
IEnumerable is a generic interface describing something that birey be enumerated (you güç iterate through it and see/retrieve all of its elements). The content of this IEnumerable dirilik have been pre-generated, or is live/lazily generated when you try to iterate through 'result' (IEnumerable).
IEnumerable and IEnumerator are both interfaces. IEnumerable saf just one method called GetEnumerator. This method returns (kakım all methods return something including void) another type which is an interface and that interface is IEnumerator. When you implement enumerator logic in any of your collection class, you implement IEnumerable (either generic or non generic).
but this violates the IEnumerable semantics and the time came when I got wrong results. so switched to C# IEnumerable Temel Özellikleri orderly creating a fresh iterator instance (see my answer)
Bu soruya sadece kayıtlı kullanıcılar cevap yazabilirler. Cevap açmak derunin lütfen giriş mimarinız.
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?
Want C# IEnumerable Nasıl Kullanılır to improve this question? Update the question so it focuses on one problem only by editing this post.
If you create an IEnumerable, C# IEnumerable Nerelerde Kullanılıyor then all rows will be pulled into memory bey objects before running the query.
şayet ki siz C# IEnumerable Nerelerde Kullanılıyor “var” harcamak istiyorsanız GetEnumerator metodunun gelişememiş dilküş tipini süflidaki gibi generic IEnumerator olarak teşhismlamanız gerekmektedir.