2 Dakika Kural için C# IEnumerable Kullanımı

2 Dakika Kural için C# IEnumerable Kullanımı

Blog Article

Implementation of IEnumerable is generally the preferred way for a class to indicate that it should be usable with a "foreach" loop, and that multiple "foreach" loops on the same object should operate independently.

Örneğin oluşturduğumuz bir List içine tığ Add komutu ile ekleme yapabiliyoruz yahut Count ile içinde bulunan elemanların sayısını alabiliyoruz ve bunu foreach içinde kullanabiliyoruz. Peki List bir sınıf olmasına mukabil foreach nasıl buna mezuniyet veriyor?

Şu anda enerjik olarak web ve mobil projeler geliştiriyorum ve 2013 seneından beri makale dolak ile yanında YouTube ve Udemy platformlarında videoteyp bağırsakerik üretiyorum.

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

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

Quoting that article, 'Kakım per the MSDN documentation, calls made on IQueryable operate by building up the internal expression tree instead.

So the difference between IQueryable and IEnumerable is about where the filter logic is executed. One executes on the client side and the other executes on the database.

You don't have to open a book and learn how to traverse the tree - C# IStructuralComparable Temel Özellikleri but simply use the foreach statement on that object and you're done.)

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

List, on the C# IStructuralComparable nerelerde kullanılıyor other hand, is a specific implementation of IEnumerable that stores the objects in a specific, known manner. Internally, this may be a very good way to store your values C# IStructuralComparable nerelerde kullanılıyor that you expose via IEnumerable, but a List is not always appropriate.

Here is a C# IStructuralComparable nedir very good article that details the differences between statement lambdas and expression lambdas and discusses the concepts of expression tress in greater depth: Revisiting C# delegates, expression trees, C# IStructuralComparable nerelerde kullanılıyor and lambda statements vs. lambda expressions.."

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

In simple words other major difference is that IEnumerable execute select query on server side, load data in-memory on client side and then filter data while IQueryable execute select query on server side with all filters.

By "functionally equivalent," I mean that's actually what the compiler turns the code into. You güç't use foreach on baz in this example unless