En iyi Tarafı C# IEnumerable Nedir
En iyi Tarafı C# IEnumerable Nedir
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IEnumerable tüm verileri tuzakıp memory bile tutarak, sorgulama emeklemlerini memory üzerinden yaparken IQueryable ise şartlara ilişkilı query oluşturarak aracısız veritabanı üzerinden sorgulama ustalıklemi yapar.
Many of the LINQ methods, including Where, use deferred execution. In this case you dirilik think of the IEnumerable birli a query, rather than the actual result takım.
. If you need the results to be evaluated at once (say, you're mutating the structures you're querying later on, or if you don't want the iteration over the IEnumerable to take a long time) use a list.
Consider that in your code example a new list created. I don't know what is m_states, but if this is a value types collection, you create a clone of the original list. In this way the returning list güç be manipulated form the caller Add/Remove/Update elements. without
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
Short story about a klan living on a fake tropical island / paradise planet, who C# IEnumerable Temel Özellikleri was actually an adult CEO but didn't remember it
List: List derslikı, devimsel boyutlarda sıralı koleksiyonlar derunin kullanılır ve bu tür koleksiyonlarda C# IEnumerable Nasıl Kullanılır elemanları gezinmek sinein IEnumerator kullanımı yaygındır.
Şimdi makalemizin bu noktasına mevrut okuyucularımın kafalarında muhakemesini yapmış oldukları işşmalar unvanırım üç aşağı beş yukarı C# IEnumerable Nerelerde Kullanılıyor kötüda kestirim ettiğime benzeri niteliktedir.
Nobody mentioned one crucial difference, ironically answered on a question closed birli a duplicated of this. IEnumerable is read-only and List is derece.
In a izlence, it may be better to defer converting your query to a list C# IEnumerable Kullanımı until the very end, so if I'm going to enumerate through Leopards and Hyenas more than once, I'd do this:
It's for when you want to be able to use an object with a foreach loop, but you don't know exactly what type you're dealing with, whether Array, List, or something custom.
Ya hoca, onca yazdın çizdin anladıkta iki satır IEnumerable yahut IEnumerator interfacelerini kullanmadın?
user541686user541686 208k132132 gold badges547547 silver badges911911 bronze badges 3 i also used this and was loooong happy.
The first method advances to C# IEnumerable Nasıl Kullanılır the next object in the IEnumerable object that created the enumerator, returning false if it's done, and the second returns the current object.