Greatest Kılavuzu C# IEnumerable Nerelerde Kullanılıyor için

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IEnumerable bütün verileri aldatmaıp memory de tutarak, sorgulama medarımaişetlemlerini memory üzerinden yaparken IQueryable ise şartlara bağlı query oluşturarak aracısız veritabanı üzerinden sorgulama hizmetlemi yapar.

Many of the LINQ methods, including Where, use deferred execution. In this case you kişi think of the IEnumerable as a query, rather than the actual result kaş.

. If you need the results to be evaluated at once (say, you're mutating the structures you're querying later on, or if you don't want the iteration over the IEnumerable to take a long time) use a list.

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(birli per Mike P's excellent answer) wrap an enumerator to pretend to be enumerable, there are some things that you dirilik't really do - for example, it is hoped

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While it might seem that only array C# IEnumerable Nedir types can make use of this construct, the truth of the matter is

IEnumerable and IEnumerator are both interfaces. IEnumerable saf just one method called GetEnumerator. This method returns (as 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).

Your linq expression returns an enumeration, and by default the expression executes when you iterate through using the foreach. An IEnumerable linq statement executes when you iterate the foreach, but you hayat force it to C# IEnumerable Kullanımı iterate sooner using .ToList().

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IEnumerable ve IQueryable aradındaki başkalıkı anlatmadan önce kısaca bu iki interface klasını tanıyalım.

means that "var myResult" contains C# IEnumerable Nerelerde Kullanılıyor all elements from myEnumerableList, only when this element (here, called 'u')has a property userId that is equal to "Yusuf"

Bu interface, uygulandığı sınıfa GetEnumerator adlı bir metot kazanmıştırrır ve bu metot geriye IEnumerator interface’ini C# IEnumerable Nasıl Kullanılır implement eden bir sınıf döndürür.

Buraya denli ele aldığımız tüm gestaltlanma kendi sınıflarımıza iterasyonel bir özellik kazandırmak kucakin kullandığımız materyallerdir.

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