5 Temel Unsurları için C# IEnumerable Temel Özellikleri

5 Temel Unsurları için C# IEnumerable Temel Özellikleri

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[Edit] - Needless to say - it's derece "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.

I noticed that if I use IEnumerable, when I debug and inspect "su taşkını", which in that case is the IEnumerable, it özgü some interesting members: "inner", "outer", "innerKeySelector" and "outerKeySelector", these last 2 appear to be delegates.

Birli per other answers, the evaluation of the result was deferred until calling ToList or similar invocation methods for example ToArray.

Analogy: Imagine you are a detective on an aeroplane . You need to work your way through all the passengers to find your suspect.

Sonunda burada ortaya çıkan sonuç; IEnumerable interfaceinin uygulandığı sınıfa zorla GetEnumerator adlı metot implement ettirilmektedir. IEnumerator ise dayalı sınıfa iterasyon anlayışleminde kullanılacak elemanları ve özellikleri kazandırmaktan sorumlu olacaktır.

I C# IEnumerable Nasıl Kullanılır noticed that if I use "Distinct", the "inner" contains 6 items (this is incorrect kakım only 2 are Distinct), but the "outer" does contain the correct values. Again, probably the delegated methods determine this but this is a bit more than I know about IEnumerable.

While it C# IEnumerable Kullanımı might C# IStructuralComparable Nasıl kullanılır seem that only array types yaşama make use of this construct, the truth of the matter is

It özgü a good performance when you C# IStructuralComparable Temel Özellikleri are iterating through big objects or collections because it does hamiş load the entire object to memory in order to make iteration.

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 my answer)

Bu soruya sadece kayıtlı kullanıcılar cevap yazabilirler. Karşılık yaymak için lütfen giriş konstrüksiyonnız.

Then with a IQueryable the generated SQL will contains “where name = “a”, but with a IEnumerable many more roles will be pulled back from the database, then the x.name = “a” check will be done by .Kupkuru.

Ya hoca, onca yazdın çizdin C# IStructuralComparable Temel Özellikleri anladıkta iki satır IEnumerable yahut IEnumerator interfacelerini kullanmadın?

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The most important thing to realize is that, using Linq, the query does hamiş get evaluated immediately. It is only run kakım part of iterating through the resulting IEnumerable in a foreach - that's what all the weird delegates are doing.