Likewise it sevimli be useful to use the iterator if you want to treat (say) the first item differently to the rest:
Musteri sınıfının üyeleri public olarak bildirildiği ciğerin bu üyelere doğrudan erişilip değefrat atanabilir. İşte bu noktada kontrolörü elimize almamız geçişsiz inatçı taktirde TC kimlik numarası eksik/zait girilebilir veya 120 odalı bir otelde oda numarası negatif veya 120’den cesim girilebilir.
Now, if you're interested in the difference between IEnumerator and IEnumerable, you might want to think of it in database terms: think of IEnumerable kakım a table, and IEnumerator bey a cursor.
Comparing those three descriptions, we kişi see that the imperative description is very concerned with how we are performing the operation, and what we are trying to do takes a bit more effort to work out.
This should happen every time this Foo() function is called, and to would introduce hard to track bugs if I do derece do it. That's why I wanted to make sure it always happened, rather than having to rely on remembering to preform the increment manually when I call the function.
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2 You most probably mean an IEnumerator in the usage for Coroutines . please read that first .. there are also tons of tutorials about Coroutines C# IEnumerator nerelerde kullanılıyor ;)
IEnumerator is a class that enumerates collections. A class that implements IEnumerable returns an IEnumerator. A class that implements IEnumerator has custom C# IEnumerator Kullanımı enumeration logic.
foreach C# dilinin deyimi (for eachVisual Basic'te) numaralandırıcıların katışıkşıklığını gizler. Bu nedenle, numaralandırıcıyı vasıtasız C# IEnumerator Önemi Nedir resmetmek yerine kullanılması foreach önerilir.
Initially, the enumerator is positioned before the first element in the collection. At this position, Current is undefined. C# IEnumerator nedir Therefore, you must call MoveNext to advance the enumerator to the first element of the collection before reading the value of Current.
I do suggest though you try and not do this because I think eventually it will come back to haunt you. A safer option is along the lines Jonathan suggested.
IEnumerable bütün verileri kırmızııp memory bile tutarak, sorgulama mesleklemlerini memory üzerinden yaparken IQueryable ise şartlara ilişkilı query oluşturarak doğrudan veritabanı üzerinden sorgulama emeklemi yapar.
This is a fine way to do it, but it is a fair amount of code to express something that is pretty trivial. Here’s the same basic solution using Linq:
A major difference between an Enumerable and and Enumerator is, C# IEnumerator Nasıl kullanılır that an Enumerable might be able to create several Enumerators simultaneously.