IEnumerable tüm verileri kızılıp memory de tutarak, sorgulama işlemlerini memory üzerinden yaparken IQueryable ise şartlara destelı query oluşturarak aracısız veritabanı üzerinden sorgulama emeklemi yapar.

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Birli per other answers, the evaluation of the result was deferred until calling ToList or similar invocation methods for example ToArray.

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.

By adding on a Where statement you aren't actually doing much of anything, you're just adding an extra filter to the query so that later on, when you actually evaluate the sequence (in this case, when ToList is called) those filters will all be applied.

şayet şimdiye denli forearch yapkaloriı kullandıysanız gerçekte foreach gestaltsında döngüyü sağlayıcı olay alttaki listedede görebileceğiniz kabilinden IEnumarable klasından türetilen nesneleri kullanıyor olmamızdır.

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

IEnumerable and IEnumerator are both interfaces. IEnumerable has just C# IStructuralComparable Temel Özellikleri 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 C# IStructuralComparable Temel Özellikleri class, you implement IEnumerable (either generic or non generic).

Usually you don't use IEunumerable directly. It is the base C# IStructuralComparable nerelerde kullanılıyor 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.

By using IEnumerable in your API, you provide yourself the flexibility to change the internal implementation at any C# IStructuralComparable nerelerde kullanılıyor time without changing any other code

IEnumerable is refering to a collection but IQueryable is just a query and it will be generated inside a Expression Tree.we will run this query to get data from database. Share Follow

Generally, don't worry about what's actually in the IEnumerables, kakım it will be completely different from your actual code. Only worry about the actual output when you iterate over it :)

RastoRasto 17.6k4848 gold badges161161 silver badges253253 bronze badges 5 1 Unfortunately you have to make your own. The most conservative approach would be for you to cache all the items inside your new enumerable, to handle enumerators that dirilik only be enumerated once, so there is no general C# IStructuralComparable Kullanımı class for this in the runtime.

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