En C# IEnumerable Nedir Sırları

En C# IEnumerable Nedir Sırları

Blog Article

The difference between IQueryable and IEnumerable is centered around this point. IQueryable builds expression trees whereas IEnumerable does derece, at least not in general terms for those of us who don't work in the secret labs of Microsoft.

Fakat şuana derece yapmış evetğumuz bütün medarımaişetlemler döngü değkonukeninin object olarak gelmesini sağlamaktadır. O yüzden dolaysız olarak cast kârlemi uygulatıyor, “var” yerine “Personel” tipini kullanıyorum.

Şimdiye denli .Kemiksiz ile kılgı vüruttirenler IENumarable ve IENumerator interface bünyelarını birfena yerde gördük yahut farkında olmadan çok kullandık yalnız ne maslahate yarıyor ne bu antrakt yüzlere ihtiyaç duyulur nerelerde kullanabilirim kadar sorulara bu makalemizde yan vereceğiz.

Consider that in your code example a new list created. I don't know what is m_states, but if this is a value types collection, you create a clone of the original list. In this way the returning list yaşama be manipulated form the caller Add/Remove/Update elements. without

System.Collections.IEnumerator. This interface provides the infrastructure to allow the caller to traverse the internal objects contained by the IEnumerable-compatible container:

IEnumerable ve IEnumerator interfaceler’i ile sizlerde oluşturduğunuz sınıflara itere özellikleri kazandırabilir, ayrıca IEnumerator interface’i ile oluşturduğunuz enumerator’de isteğinize nazaran iterasyonun periyodunu ayarlayabilir ve foreach döngüsünde kullanabilirsiniz.

So if I am going through all the items on ebay, one at a time would be something even a small computer dirilik handle, but ".ToList()" would surely run me out of memory, no matter how big my computer was. No computer gönül by itself contain and handle such a huge amount of data.

IEnumerable and IEnumerator are both interfaces. IEnumerable özgü just one C# IEnumerable Nasıl Kullanılır method called GetEnumerator. This method returns (birli 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).

IEnumerable describes C# IEnumerable Nasıl Kullanılır behavior, while List is an implementation of that behavior. When you use IEnumerable, you give the compiler a chance to defer work C# IEnumerable Nasıl Kullanılır until later, possibly optimizing along the way. If you use ToList() you force the compiler to reify the results right away.

There are many C# IEnumerable Nasıl Kullanılır cases (such kakım an infinite list or a very large list) where IEnumerable cannot be transformed to a List. The most obvious examples are all the prime numbers, all the users of feysbuk with their details, or all the items on ebay. The difference is that "List" objects are stored "right here and right now", whereas "IEnumerable" objects work "just one at a time".

JWT Claimlerle çdüzenışmamız nasıl olmalı hocam sözde HttpContextAccessor'u filan devreye sokuyorduk

Expression trees are a very important construct in C# and on the .Kemiksiz ortam. (They are important in general, but C# makes them very useful.) To better understand the difference, I recommend reading about the differences between expressions

Reed CopseyReed Copsey 561k7979 gold badges1.2k1.2k silver badges1.4k1.4k bronze badges 3 2 I agree strongly with your point about decoupling from the implementation, but I also think there's a point for making clear the expected usage; even if I have a List, referring to it birli IEnumerable makes it clear that the functionality I'm expecting from the collection in that usage is the enumerability functionality, and derece any of the other List functionality.

When declaring a method’s parameter C# IEnumerable Nasıl Kullanılır types, you should specify the weakest type possible, preferring interfaces over base classes. For example, if you are writing a method that manipulates a collection of items, it would be best to declare the method’s parameter by using an interface such birli IEnumerable rather than using a strong data type such bey List or even a stronger interface type such bey ICollection or IList: