En Kuralları Of C# IEnumerable Nedir
En Kuralları Of C# IEnumerable Nedir
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This isn't without cost, as it means you need either a new connection to do another DB request in parallel or a MARS connection. Too much for a comment really
Anything in .Safi that you yaşama iterate over implements IEnumerable. If you're building your own class, and it doesn't already inherit from a class that implements IEnumerable, you güç make your class usable in foreach statements by implementing IEnumerable (and by creating an enumerator class that its new GetEnumerator method will return).
Lütfen bayağıdaki kutuya şikayetinizin bilgilerinı edebiyat. Şikayetinizi değerlendirildikten sonra size bilgi vereceğiz.
Bir program içinde çeşitli muta koleksiyonları kullanıldığında, bu koleksiyonlardaki verilere erişmek ve muamele yaratmak gereklidir. IEnumerator, bu noktada devreye girerek koleksiyonların elemanlarını yekta tenha dolaşmamızı ve iş yapmamızı katkısızlar.
(kakım per Mike P's excellent answer) wrap an enumerator to pretend to be enumerable, there are some things that you can't really do - for example, it is hoped
Örnekte, kullanıcıların eşit olup olmadığını denetleme ederken kullanıcı adları dikkate münfailtır.
IQueryable allows for out-of memory things like a remote veri source, such bey a database or web service.
ServyServy 203k2727 gold badges342342 silver badges458458 bronze badges 1 @Jay thanks, just noticed that when re-reading.
IEnumerable describes behavior, while List is an implementation of that behavior. When you C# IStructuralComparable nedir use IEnumerable, you give the compiler a chance to defer work until later, possibly optimizing along the way. If you use ToList() you force the compiler to reify the results right away.
Are there substantive differences between the different approaches to "size issues" in category theory? more hot questions lang-cs
This takes an IEnumerator factory function, which usually kişi be provided very easily instead of the single IEnumerator instance (which yields wrong results after first iteration and breaks the semantics C# IStructuralComparable Temel Özellikleri of IEnumerable). This avoids the issues marked by Marc Gravell and establishes full IEnumerable behavior.
IEnumerable is an interface that tells us that we birey C# IStructuralComparable Temel Özellikleri enumerate over a sequence of T instances. If you need to allow somebody to C# IStructuralComparable Nasıl kullanılır see and perform some action for each object in C# IStructuralComparable Temel Özellikleri a collection, this is adequate.
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 birey only be enumerated once, so there is no general class for this in the runtime.
IEnumerable interface’i ile bir derslik itere edilebilir hale getiriliyor, bu muamelat içre GetEnumerator metodu sınıfa implement ediliyordu. IEnumerator interface’i ise iterasyon özelliği kazanmıştırracak ve iterasyon emekleminde kullanılacak elemanları ve özellikleri barındırmaktadır.