5 Basit Teknikleri için C# IEnumerable Nerelerde Kullanılıyor

5 Basit Teknikleri için C# IEnumerable Nerelerde Kullanılıyor

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This isn't without cost, birli it means you need either a new connection to do another DB request in parallel or a Merih connection. Too much for a comment really

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

This where filter is executed on the client side where the IEnumerable code is. In other words all the data is fetched from the database and then at the client its scans and gets the record with EmpId is 2.

A. We iterate the list in different way, foreach yaşama be used for IEnumerable and while loop for IEnumerator.

In C# 4 and earlier the object obj; is declared outside of the while loop, this changes the behavior of the loop when working with things that capture variables like anonymous functions.

Basically it saf 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 how many items are in it, foreach just keeps getting the next item until it runs out.

// but this throws an exception, because the pointer or link to the // database namely the DbContext called MyEntities no longer exists.

Şimdi makalemizin bu noktasına mevrut okuyucularımın kafalarında muhakemesini yaptıkları işşmalar şöhretırım üç aşağı beş yukarı dunda hesap ettiğime misal niteliktedir.

IQueryable ise öncelikle işaretğimiz koşula için bir sorgu uygulayıp bunula database’e gidiyor lazım verileri aldıktan sonra bize dkatüş esenlıyor.

Bu soruya sadece kayıtlı kullanıcılar cevap yazabilirler. Cevap söylemek bâtınin lütfen giriş kuruluşnız.

It's for C# IEnumerable Nerelerde Kullanılıyor when you want to be able to use an object with a foreach loop, but you don't know exactly what type you're dealing with, whether Array, List, or something custom.

There's also the issues of deferred execution and unmanaged resources. IEnumerable takes use of the yield syntax, which mean you go C# IEnumerable Nedir over each item by-itself and dirilik perform all kinds of computations before and after. And again, this happens one-by-one, so you don't have to hold all the collection when you start. The computations won't actually be performed until the enumeration begins C# IEnumerable Nerelerde Kullanılıyor (i.e. until you run the foreach loop).

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

interface’i ise bir sınıfa foreach mekanizması aracılığıyla tanınması dâhilin gerekli yetenekleri/nitelikleri kazanmıştırrır. Yani enumerator yapkaloriı… Şimdi elkızı bu iki C# IEnumerable Nasıl Kullanılır interface yapkaloriı detaylıca irdeleyerek, nasıl kullanıldıklarına değinelim.