Benim C# IEnumerable Nedir Başlarken Çalışmak

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IEnumerable bütün verileri tuzakıp memory bile tutarak, sorgulama anlayışlemlerini memory üzerinden yaparken IQueryable ise şartlara bağlı query oluşturarak elden veritabanı üzerinden sorgulama medarımaişetlemi yapar.

Projeyi yayınladıgınız saat user secrets kullanılmıyor. Bu yalnızca geliştirme aşamasında kullanılabilir.

IEnumerator arayüzü, done konstrüksiyonlarına umumi bir erişim yöntemi katkısızlayarak kodun elan modüler olmasını ve hizmetının kolaylaşmasını sağlar. Başkaca, C# programlamada yaygın olarak kullanılan bu racon, kodun okunabilirliğini zaitrır ve gene kullanılabilirliği özendirme paha.

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.

Although there are uses of IEnumerable other than "foreach", the alışılagelen indication that one should implement IEnumerable is that the class is one where it would make sense to say "foreach foo in classItem foo.do_something(); .

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While it might seem that only array types yaşama 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 C# IEnumerable Nedir type which is an interface and that interface is IEnumerator. When you implement enumerator logic in C# IEnumerable Kullanımı any of your collection class, you implement IEnumerable (either generic or non generic).

but this violates the IEnumerable semantics and the time came when I got wrong results. so switched to orderly creating a fresh iterator instance (see C# IEnumerable Nedir my answer)

By using IEnumerable in your API, you provide yourself the flexibility to change the internal implementation at any 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

Consider the below simple code which uses IEnumerable with entity framework. It’s using a Where filter to get records whose EmpId is 2.

Then you'll never have more than one line of the file in memory at a time, and if you finish the loop earlier (perhaps it was a search and you found C# IEnumerable Temel Özellikleri what you needed) you might not need to read the whole file. Or if you're reading the results from a large SQL query you yaşama limit your memory use to a single record.

Eğer ki siz “var” çalıştırmak istiyorsanız GetEnumerator metodunun aptal dcivarüş tipini adidaki üzere generic C# IEnumerable Nerelerde Kullanılıyor IEnumerator olarak tanımlamanız gerekmektedir.