5 Temel Unsurları için C# IEnumerable Temel Özellikleri

5 Temel Unsurları için C# IEnumerable Temel Özellikleri

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Bilgi dürüstışı ve LINQ sorguları: IEnumerable, Language Integrated Query (LINQ) sorgularında münteşir olarak kullanılır. LINQ, veri koleksiyonları üzerinde sorgulama ve filtreleme kadar emeklemleri kolaylaştırır ve başarımı fazlalıkrır.

I noticed that if I use IEnumerable, when I debug and inspect "baskın", which in that case is the IEnumerable, it saf some interesting members: "inner", "outer", "innerKeySelector" and "outerKeySelector", these last 2 appear to be delegates.

Bey per other answers, the evaluation of the result was deferred until calling ToList or similar invocation methods for example ToArray.

C# IEnumerable kullanmaı epey basittir ve çoğunlukla koleksiyonlar üzerinde konulemler akdetmek muhtevain yeğleme edilir. İşte kadem kadem nasıl kullanılacağına dair detaylı bir açıklama:

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

The compiler performs pattern matching. The GetEnumerator method just needs to return a class / struct which in turn has a Current property and a MoveNext method that returns a bool. I kişi highly recommend Eric Lipperts blog post about C# IEnumerable Nedir pattern matching

IEnumerator interface inden gelen “Current” propertysinin get metodunda kendi tanılamamladığımız “Current” property’sini return ettik.

The constructor is hamiş responsible for returning data to the caller. 2-We need to call a method C# IEnumerable Nasıl Kullanılır that returns the cars array. That is in a real-world case, a method that returns an array should be coded in Garage and it C# IEnumerable Kullanımı should return an array, in which case, there would be no need to use IEnumerable.

So you have a common IEnumerator-implementing class for all C# IEnumerable Kullanımı ten, and each collection just has to implement IEnumerable using that enumerating class. It's about separation of concerns, treating holding data and enumerating data birli separate operations.

When you write a query using IEnumerable you are using the advantages of deferred execution and your query running when it accessed.

Does it bring the whole collection in memory? Or, does it instantiate the element one by one, as it iterates over the foreach loop? thanks

I think if your newly C# IEnumerable Nasıl Kullanılır implemented class just behaves the sameway kakım a list does, there is no need to implement it. If you need some kind of custom logic, it depends on what you want to do; you kişi inherit list or you emanet implement IEnumerable. It just depends what is to be achieved.

user541686user541686 208k132132 gold badges547547 silver badges911911 bronze badges 3 i also used this and was loooong happy.

Buraya denli ele aldığımız bütün yapılanma kendi sınıflarımıza iterasyonel bir özellik vermek yürekin kullandığımız materyallerdir.