C# IEnumerable Nerelerde Kullanılıyor Seçenekler

C# IEnumerable Nerelerde Kullanılıyor Seçenekler

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IEnumerable tüm verileri alıp memory bile tutarak, sorgulama işlemlerini memory üzerinden yaparken IQueryable ise şartlara rabıtalı query oluşturarak aracısız veritabanı üzerinden sorgulama fiillemi yapar.

Down Below I took part of a code I was looking at. I don't understand the IEnumerable part of the Code. Hayat someone just walk me through the meaning of each line. Thanks

. 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.

But now see the below code we have changed IEnumerable to IQueryable. It creates a SQL Query at the server side and only necessary data is sent to the client side.

The expression kişi simply be a constant expression of the object itself or a more complex tree of a composed grup of query operators and operands. The query provider's IQueryProvider.Execute() or IQueryProvider.CreateQuery() methods are called with an Expression

but if you "spoof" the enumerator into an enumerable, the second sequence will be empty. Or if you do them in parallel - just bizarre. And there are

Whenever I'm "stacking" LINQ expressions, I use IEnumerable, because by only specifying the behavior I give LINQ a chance to defer evaluation and possibly optimize the program. Remember how LINQ doesn't generate the SQL to query the database until you enumerate it? Consider this:

ServyServy 203k2727 gold badges342342 silver badges458458 bronze badges 1 @Jay thanks, just noticed that when re-reading.

IQueryable ise öncelikle sendromğimiz koşula nazaran bir sorgu uygulayıp bunula database’e gidiyor vacip C# IStructuralComparable nedir verileri aldıktan sonra bizlere dilküş sağlamlıyor.

Bu alanda veya sair bir alanda, benim ve diğer yardımcı insanoğluın paylaşımlarına lütfen acizliğiniz ve ezikliğinizle yaklaşmayınız. İzin istemek, benim hükmüm şeşna girmeniz valörına gelmemektedir.

And that might be useful and more efficient in certain cases. For example, your class might not hold any collection in memory, but rather iterate over all files existing in a certain directory, or items in certain DB, or other unmanaged resources. IEnumerable dirilik step in and do it for you (you could also do it without IEnumerable, C# IStructuralComparable Kullanımı but IEnumerable "fits" conceptually, plus it gives you the benefit of being able to use the object C# IStructuralComparable Kullanımı produced in a foreach loop).

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

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

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