C# IEnumerable Temel Özellikleri Aptallar için

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Botz3000Botz3000 39.4k88 gold badges106106 silver badges128128 bronze badges 1 I believe this is was hamiş asked here so it güç be a comment hamiş an answer, but anyway makes sense from refactoring standpoint

Lakin şuana derece yapmış olduğumuz bütün maslahatlemler döngü değnöbetkeninin object olarak gelmesini sağlamaktadır. O yüzden direkt olarak cast konulemi uygulatıyor, “var” adına “Personel” tipini kullanıtefsir.

So unless you want to perform operations that are more efficient on the list, this really does mean lower performance.

e., using IEnumerable instead of List where possible) provides exactly that decoupling while also requiring proper design philosophy. That is to say, you birey achieve decoupling but hamiş achieve minimal dependency, but you cannot achieve minimal dependency without achieving maximal decoupling.

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

IEnumerator is a class that enumerates collections. A class that implements IEnumerable returns an IEnumerator. A class that implements IEnumerator saf custom enumeration logic.

Whenever I'm "stacking" LINQ expressions, I use IEnumerable, because by only specifying the behavior I give LINQ a chance to defer evaluation and possibly optimize the yetişek. Remember how LINQ doesn't generate the SQL to query the database until you enumerate it? Consider this:

ServyServy 203k2727 gold badges342342 silver badges458458 bronze badges 1 @Jay thanks, just noticed that when re-reading.

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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, C# IEnumerable Temel Özellikleri but a List is hamiş always appropriate.

And that might be useful and more efficient C# IEnumerable Nasıl Kullanılır in certain cases. For example, your class might hamiş hold any collection in memory, but rather iterate over all files existing in a certain directory, or items in C# IEnumerable Nasıl Kullanılır certain DB, or other unmanaged resources. IEnumerable sevimli step in and do it for you (you could also do it without IEnumerable, but IEnumerable "fits" conceptually, plus it gives you the benefit of being able to use the object produced in a foreach loop).

IEnumerable enable implicit reference conversion for array types C# IEnumerable Nasıl Kullanılır which known birli Covariance. Consider the following example:

If the collection supports indexers, you could also iterate over it with the classic for loop method but C# IEnumerable Temel Özellikleri the Iterator pattern provides some nice extras like the ability to add synchronization for threading.

Bu metodun amacı garbage collector’ı beklemeden kullanılan referans tipi bileğnöbetkenleri nöbetleri bittikten sonra ramden temizleyebilmektir.IEnumerable,IEnumerator interface’leri C# 2 ile beraberinde gelmiş ve IEnumerable,IEnumerator interface’lerinden tereke münfailtır.Kemiksizçkakımı temelde aynı soruni yapmakla baş başa bu yazdıklarımı dikkate aldığınızda,generic kuruluşları kullanmanız henüz doğru görünmektedir.