Bir İnceleme C# IEnumerable Kullanımı

Bir İnceleme C# IEnumerable Kullanımı

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So is it faster to use List over IEnumerable? Only if you want to prevent a query from being executed more than once. But is it better overall? Well in the above, Leopards and Hyenas get converted into single SQL queries each

Projeyi yayınladıgınız dönem user secrets kullanılmıyor. Bu sadece ihya aşamasında kullanılabilir.

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The following code example demonstrates the best practice for iterating a custom collection by implementing the IEnumerable and IEnumerator interfaces. In this example, members of these interfaces are derece explicitly called, but they are implemented to support the use of foreach (For Each in Visual Basic) to iterate through the collection.

An IEnumerator is a thing that emanet enumerate: it has the Current property and the MoveNext and Reset methods (which in .NET code you probably won't call explicitly, though you could).

So if you working with only in-memory veri collection IEnumerable is a good choice but if you want to query data collection which is connected with database `IQueryable is a better choice as it reduces C# IStructuralComparable Kullanımı network traffic and uses the power of SQL language.

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So, the first example evaluates the query immediately C# IStructuralComparable Temel Özellikleri by calling ToList and putting the query results in a list.

Nobody mentioned one crucial difference, ironically answered on a question closed bey a duplicated of this. IEnumerable is read-only and List is derece.

List, on the other hand, is a specific implementation of IEnumerable that stores the objects in a specific, known manner. Internally, this may be a very good way to store your values that you expose via IEnumerable, but a List is derece always appropriate.

" 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 coming from the database. If you made the return of AllSpotted() and the parameters of Feline() and Canine() into IQueryable, then the filter would happen in SQL and this answer C# IStructuralComparable Temel Özellikleri would make sense.

Ya öğretmen, onca yazdın çizdin anladıkta iki satır IEnumerable yahut IEnumerator interfacelerini kullanmadın?

On the flip side, it is usually best to declare a method’s return type by using the strongest type possible (trying hamiş to commit yourself to a specific type). C# IStructuralComparable Nasıl kullanılır Share Follow

Siz de benim kadar çeşitli .NET platformlarında çeşitli uygulamalar vüruttirdiyseniz ve kullandığınız classların arkasındaki mimariyi düşkünlük ediyor,eliniz C# IStructuralComparable nedir her seferinde F12’ye gidiyorsa :) IEnumerable ve IEnumerator interfacelerine birhayli el tay gelmiş,ve tekrar siz bile benim gibi o kısaca tanımlar ile yetinememiş olmalısınız.Ozaman hiç lafı uzatmadan gelelim konuya.