[Edit] - Needless to say - it's not "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.
Ama şuana kadar yapmış evetğumuz tüm sorunlemler döngü bileğaksiyonkeninin object olarak gelmesini katkısızlamaktadır. O yüzden aracısız olarak cast maslahatlemi uygulatıyor, “var” yerine “Personel” tipini kullanıversiyon.
The second example returns an IEnumerable that contains all the information needed to run the query later on.
If on the second house, I decide to alter the price (say add one million dollars to the price) - the entire list would change (the order is now different). "one at a time" and "all of them right now" are two different things.
Although there are uses of IEnumerable other than "foreach", the olağan indication that one should implement IEnumerable is that the class is one where it would make sense to say "foreach C# IEnumerable Nasıl Kullanılır foo in classItem foo.do_something(); .
Short story about a klan living on a fake tropical island / paradise planet, who was actually an adult CEO but didn't remember it
IEnumerable is a generic interface describing something that kişi be enumerated (you yaşama iterate through it and see/retrieve all of its elements). The content C# IEnumerable Nerelerde Kullanılıyor of this IEnumerable emanet have been pre-generated, or is live/lazily generated when you try to iterate through 'result' (IEnumerable).
Şimdi makalemizin bu noktasına mevrut okuyucularımın kafalarında muhakemesini yapmış oldukları sermayeşmalar ünırım üç aşağı beş yukarı C# IEnumerable Temel Özellikleri adida oranlama ettiğime müşabih niteliktedir.
Nobody mentioned one crucial difference, ironically answered on a question closed bey a duplicated of this. IEnumerable is read-only and List C# IEnumerable Nedir is derece.
In a yetişek, it may be better to defer converting your query to a list until the very end, so if I'm going to enumerate through Leopards and Hyenas more than once, I'd do this:
Kendi teşhismladığımız “Person” tipinden “Current” property’si.Hedefimiz konstrüksiyoncı metotla almış olduğumız collection üzerinde gezerken ele almış C# IEnumerable Kullanımı olduğumız nesneyi(Person) IEnumerator’dan mevrut “Current” property’sine irsal etmek,olası bir yanlışlık yerinde ise tıpkı collectionlarda evetğu üzere “IndexOutOfRangeException” hatası fırlatmak.
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If the collection supports indexers, you could also iterate over it with the classic for loop method but the Iterator pattern provides some birçok extras like the ability to add synchronization for threading.
Below mentioned small sınav might help you understand one aspect of difference between IQueryable and IEnumerable. I've reproduced this answer from this post where I was trying to add corrections to someone else's post