C# IEnumerable Nedir Seçenekler

C# IEnumerable Nedir Seçenekler

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Botz3000Botz3000 39.4k88 gold badges106106 silver badges128128 bronze badges 1 I believe this is was not asked here so it sevimli be a comment hamiş an answer, but anyway makes sense from refactoring standpoint

So when you have to simply iterate through the in-memory collection, use IEnumerable, if you need to do any manipulation with the collection like Dataset and other data sources, use IQueryable

IEnumerable interface’i sayesinde bir sınıf itere edilebilir özellik kazanmaktadır. Peki bir sınıfın itere edilebilirlik özellik kazanması neydi?

Olur. Şu ana denli hiç IEnumerable ve IEnumerator interfacelerini kullanmadım diyebiliriz. Isteklendirmek gelin şimdi bu interfaceleri uslu yekta ele alalım ve bu sırada mafevkdaki satırlarda bahsettiğimiz GetEnumerator metodunuda tam teferruatlı masaya yatıralım.

By adding on a Where statement you aren't actually doing much of anything, you're just adding an extra filter to the query so that later on, when you actually evaluate the sequence (in this case, when ToList is called) those filters will all be applied.

IEnumerator is a class that enumerates collections. A class that implements IEnumerable returns an IEnumerator. A class that implements IEnumerator başmaklık custom enumeration logic.

This is a nice video on youtube which demonstrates how these interfaces differ , worth a watch. Below goes a long descriptive answer for it.

This way you have possibility to do many C# IEnumerable Kullanımı things with that query without touching the data (in this case data in the list). List method takes the prepared query and executes it against the source of data.

Bu şekilde derme yürekindeki elemanlara sırasıyla ulaşım sağlamlanabilir. Aşağıda bu yararlanmaı gösteren bir örnek bulunmaktadır:

Bu, mukayyetmın kalitesini zaitrır ve olası hataları er C# IEnumerable Nerelerde Kullanılıyor aşamalarda belirleme etmeyi kolaylaştırır.

" This is false, because the where clause is getting called on an IEnumerable and that only knows how to loop through objects which are already C# IEnumerable Temel Özellikleri coming from the database. If you made the return of AllSpotted() and the parameters C# IEnumerable Nasıl Kullanılır of Feline() and Canine() into IQueryable, then the filter would happen in SQL and this answer would make sense.

But if your class C# IEnumerable Nedir cannot act like a collection then provide a public IEnumerable property for its elements:

My question is that should these classes instead implement the IEnumerable interface, and call GetEnumerator on the List itself.

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.