2 Dakika Kural için C# IEnumerable Kullanımı
2 Dakika Kural için C# IEnumerable Kullanımı
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Down Below I took part of a code I was looking at. I don't understand the IEnumerable part of the Code. Emanet someone just walk me through the meaning of each line. Thanks
An IEnumerable is a thing that can be enumerated...which simply means that it özgü a GetEnumerator method that returns an IEnumerator.
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To get them I use VisualTreeHelper class. But I have to consider that there might be A LOT OF children so copying to some array or Collection will by expensive. – drasto 5 mins ago
Basically it has a method to get the next item in the collection. It doesn't need the whole collection to be in memory and doesn't know how many items are in it, foreach just keeps getting the next item until it runs out.
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 the database until you enumerate it? Consider this:
ServyServy 203k2727 gold badges342342 silver badges458458 bronze badges 1 @Jay thanks, just C# IEnumerable Nasıl Kullanılır noticed that when re-reading.
) without affecting original data." is confusing. Do you mean that the new list returned gönül been added to, and elements dirilik be removed but no updates? I thought that because it returned ienumerable you can modify the elements in the list, i.e. change a property like you said but you kişi't C# IEnumerable Nerelerde Kullanılıyor add and remove items in the list. Is that correct?
Bu soruya yalnızca kayıtlı kullanıcılar yanıt yazabilirler. Yanıt cızıktırmak yürekin lütfen giriş gestaltnız.
" This C# IEnumerable Nasıl Kullanılır is false, because the where clause is getting called on an IEnumerable and that only C# IEnumerable Kullanımı knows how to loop through objects which are already coming from the database. If you made C# IEnumerable Nasıl Kullanılır the return of AllSpotted() and the parameters of Feline() and Canine() into IQueryable, then the filter would happen in SQL and this answer would make sense.
Bir sonraki elementin varlığını sınayan MoveNext ve uygulanan elementi veren GetCurrent metodlarına sahiptir.
user541686user541686 208k132132 gold badges547547 silver badges911911 bronze badges 3 i also used this and was loooong happy.
The first method advances to the next object in the IEnumerable object that created the enumerator, returning false if it's done, and the second returns the current object.