C# IEnumerable Kullanımı Günlükler

C# IEnumerable Kullanımı Günlükler

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IEnumerable tüm verileri tuzakıp memory de tutarak, sorgulama işlemlemlerini memory üzerinden yaparken IQueryable ise şartlara bağlı query oluşturarak vasıtasız veritabanı üzerinden sorgulama sorunlemi yapar.

Bu iki arayüzün tasarruf senaryoları değişikdır ve birbirlerinin adına kullanılmamalıdır. Bu makalede, IEnumerable ve IQueryable arasındaki farkları inceleyeceğiz.

An IEnumerable is a thing that emanet be enumerated...which simply means that it has a GetEnumerator method that returns an IEnumerator.

IEnumerable execute a select query on the server side, load data in-memory on a client-side and then filter veri

Said in a very simple way, that any object implementing this interface will provide a way to get an enumerator. An enumerator is used with the foreach kakım one example.

Basically it özgü 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.

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 program. Remember how LINQ doesn't generate the SQL to query the database until you enumerate it? Consider this:

Coming soon: Throughout 2024 C# IEnumerable Nerelerde Kullanılıyor we will be phasing out GitHub Issues kakım the feedback mechanism for content and replacing it with a new feedback system. For more information see: .

What US checks and balances prevent the FBI from raiding politicians C# IEnumerable Nedir unfavorable to the federal government?

Are there substantive differences between the different approaches to "size issues" in category theory?

This dirilik be very useful C# IEnumerable Kullanımı in certain circumstances, for instance in a massive database table you don't want to copy the entire thing into memory before you C# IEnumerable Kullanımı start processing the rows.

But if your class cannot act like a collection then provide a public IEnumerable property for its elements:

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 sevimli only be enumerated once, C# IEnumerable Nedir so there is no general class for this in the runtime.

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