C# IEnumerable Nedir Seçenekler

Wiki Article

[Edit] - Needless to say - it's hamiş "either this or that". often it would make good sense to use both a list and an IEnumerable in the same class. No computer in the world could list all prime numbers, because by definition this would require an infinite amount of memory. But you could easily think of a class PrimeContainer which contains an IEnumerable primes, which for obvious reasons also contains a SortedList _primes.

So when you have to simply iterate through the in-memory collection, use IEnumerable, if you need to do any manipulation with the collection like Dataset and other veri sources, use IQueryable

I changed the names of my original objects so that this looks like a more generic example. The query itself is hamiş that important. What I want to ask is this:

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

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

B. IEnumerator can remember the current index when we pass from one method to another (it start working with current index) but IEnumerable kişi't remember the index and it reset the index to beginning. More in this videoteyp

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.

It is a best practice to implement IEnumerable and IEnumerator on your collection classes to enable the C# IEnumerable Kullanımı foreach (For Each in Visual Basic) syntax, however implementing IEnumerable is not required. If your collection does hamiş implement IEnumerable, you must still follow the iterator pattern to support this syntax by providing a GetEnumerator method that returns an interface, class C# IEnumerable Nerelerde Kullanılıyor or struct.

Where the execution of a query is going to be performed "in process", typically all that's required is the code (birli code) to execute each part of the query.

Yani IEnumerable yapısında filtreleme işlemleri memory de kuruluşlırken, C# IEnumerable Nasıl Kullanılır IQueryable da veritabanından kazık filtrelenmiş verileri elde ederiz.

Bu C# IEnumerable Nasıl Kullanılır yöntemler sebebiyle, standart huzurlaştırma mantığını bileğaksiyontirerek özel meselelemler yapabilir ve uygulamanızın performansını ve doğruluğunu zaitrabilirsiniz.

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

C# IEnumerable Kullanımı Why does the Clausius inequality involve a single term/integral if we consider a body interacting with multiple heat sources/sinks?

Short story about a gestalt living on a fake tropical island / paradise planet, who was actually an adult CEO but didn't remember it