Açıklanan C# IEnumerable Temel Özellikleri Hakkında 5 Kolay Gerçekler

Açıklanan C# IEnumerable Temel Özellikleri Hakkında 5 Kolay Gerçekler

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So is it faster to use List over IEnumerable? Only if you want to prevent a query from being executed more than once. But is it better overall? Well in the above, Leopards and Hyenas get converted into single SQL queries each

Anything in .Kemiksiz that you dirilik iterate over implements IEnumerable. If you're building your own class, and it doesn't already inherit from a class that implements IEnumerable, you hayat make your class usable in foreach statements by implementing IEnumerable (and by creating an enumerator class that its new GetEnumerator method will return).

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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.

An Enumerable is a class that dirilik give you Enumerators. It katışıksız a method called GetEnumerator which gives you an Enumerator that looks at its items. When you write a foreach loop in C#, the code that it generates calls GetEnumerator to create the Enumerator used by the loop.

So if you working with only in-memory C# IEnumerable Nerelerde Kullanılıyor veri collection IEnumerable is a good choice but if you want to query data collection which is connected with database `IQueryable is a better choice birli it reduces network traffic and uses the power of SQL language.

Ryan LundyRyan Lundy 208k4141 gold badges183183 silver badges214214 bronze badges 3 4 Then why do we need this IEnumerable abstraction, if the only thing it does is just provide an access to Enumerator? Why don't just use Enumerator instead

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Usually you don't use IEunumerable directly. It is the base 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.

Örneğin, bir List yahut ArrayList kabilinden koleksiyonların kucakindeki verileri sıralı bir şekilde dercetmek veya belli başlı bir koşula için C# IEnumerable Nerelerde Kullanılıyor filtrelemek sinein IEnumerator kullanılabilir. Bu, yazılım geliştirme sürecinde verimliliği zaitrır ve kodun okunabilirliğini iyileştirir.

IEnumerable ve IQueryable aradındaki üstelikı anlatmadan önce kısaca bu iki interface dershaneını tanıyalım.

IEnumerable is an interface that tells us that we yaşama enumerate over a sequence of T instances. If you need to allow somebody to see and perform some action for each object in a collection, this is C# IEnumerable Kullanımı adequate.

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

If you are writing a class, and your class implements the IEnumerable interface (generic (T) or hamiş) C# IEnumerable Kullanımı you're allowing any consumer of your class to iterate over C# IEnumerable Temel Özellikleri its collection without knowing how it's structured.