Bir Unbiased Görünüm C# IEnumerable Temel Özellikleri

Bir Unbiased Görünüm C# IEnumerable Temel Özellikleri

Blog Article

Eğer milyonlarca eşya üzerinde sorgulama sorunlemi yapıyorsak elbette IQueryable IEnumerable göre elan hızlı sorgulama konulemi yapar.

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 data sources, use IQueryable

Now the thing to note is that IEnumerable brought all the 5 records present in Salary table and then performed an in-memory filteration on the client side to get top 2 records. So more data (3 additional records in this case) got transferred over the network and ate up the bandwidth unnecessarily.

Now List implements IEnumerable, but represents the entire collection in memory. If you have an IEnumerable and you call .ToList() you create a new list with the contents of the enumeration in memory.

Normalde bilirsiniz ki bir metod takkadak okkalı return yapması imkansız ancak return'ün başına yield koyduğumuzda ne oluyorda yapabiliyor?

şayet şimdiye denli forearch yapkaloriı kullandıysanız haddizatında foreach mimarisında döngüyü sağlayıcı fenomen alttaki listedede görebileceğiniz kadar IEnumarable klasından türetilen nesneleri kullanıyor olmamızdır.

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 C# IEnumerable Nasıl Kullanılır the database until you enumerate it? Consider this:

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

IEnumerable describes behavior, while List is an implementation of that behavior. When C# IEnumerable Nasıl Kullanılır you use IEnumerable, you give the compiler a chance to defer work until later, possibly optimizing C# IEnumerable Temel Özellikleri along the way. If you use ToList() you force the compiler to reify the results right away.

List, on the 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 that you expose via IEnumerable, but a List is hamiş always appropriate.

This takes an IEnumerator factory function, which usually güç be provided very easily instead of the single IEnumerator instance (which yields wrong results after first iteration and breaks the semantics of IEnumerable). This avoids the issues marked by Marc Gravell and establishes full IEnumerable behavior.

something is up with your image link, its not rendering in the post body for some reason codeproject.com/KB/cs/646361/WhatHowWhere.jpg

JWT Claimlerle çallıkışmamız nasıl olmalı hocam C# IEnumerable Nasıl Kullanılır sanki HttpContextAccessor'u falan devreye sokuyorduk

In addition to all the answers posted above, here is my two cents. There are many other types other than List that implements IEnumerable such ICollection, ArrayList etc.