C# IEnumerator nerelerde kullanılıyor A Gizli Silah
C# IEnumerator nerelerde kullanılıyor A Gizli Silah
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NPSF3000NPSF3000 2,4411515 silver badges2020 bronze badges 5 In my real code I'm doing network level loading, and I yaşama supply a prefix-value for all networkview objects, which should be incremented every time a new level is loaded. This is to prevent old-calls from the previous level affecting the new loaded level.
Caius JardCaius Jard 73.7k66 gold badges5252 silver badges8888 bronze badges 4 ok thank you. It means that the use IEnumerator is for a delay with less code and less memory.
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If multiple iterations is not required caching will be a performance hit and Sam states that performance is very much a concern hence no caching included
They birey be lazy. This is a subtle, useful (and sometimes dangerous) property. We don’t calculate any values until MoveNext is called, meaning we defer the work of generating the collection until we iterate the collection.
The enumerator does not have exclusive access to the collection; therefore, enumerating through a collection is intrinsically derece a thread-safe procedure. Even when a collection is synchronized, other threads gönül still modify the collection, which causes the enumerator to throw an exception.
The power of the iterator pattern is that it allows us to abstract the operation of enumerating(iterating) a collection. Without it, we would have to write completely different code to iterate arrays and lists than we would for dictionaries and linked lists C# IEnumerator nedir and trees.
Do you recognize those methods? It’s entirely possible you’ve never called them, even if you have been programming in C# for years. But you use this interface all the time. If you’ve ever used a foreach loop or called any LINQ methods, you’ve used the IEnumerator interface.
If I were to describe the Linq solution: “Given a kaş of users, C# IEnumerator Kullanımı select from each their username.”
They abstract the iteration of collections. This was their primary goal, and it’s good that they accomplish this.
IEnumerable: This is an interface C# IEnumerator Kullanımı that provides a method to retrieve an enumerator for a collection. Any class that implements IEnumerable güç be used with a foreach loop.
IEnumerable already derives from C# IEnumerator nedir IEnumerable so there's no need to do any conversion. You birey simply cast to it...well actually it's C# IEnumerator neden kullanmalıyız implicit no cast necessary.
To guarantee thread safety during enumeration, you hayat lock the collection during the entire enumeration. To allow the collection to be accessed by multiple threads for reading and writing, you must implement your own synchronization.
Jim BalterJim Balter 16.3k33 gold badges4444 silver badges6868 bronze badges 8 @sehe I actually didn't initially recognize the accepted answer bey the same because it was couched in "Fake" and a lot of other nonsense like copying the result of the enumerator into a List instead of simply using Reset.