En iyi Tarafı C# IEnumerable Nedir

En iyi Tarafı C# IEnumerable Nedir

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So if we have IEnumerable kakım parameter of any method, we birey pass any collection types to the function. Ie we güç have method to operate on abstraction derece any specific implementation.

Yani imdi custom bir enumerator dershaneı yazmamıza lüzum yasak yield keyword'ü ile compiler bunu art planda bizim derunin yapıyor.

I changed the names of my original objects so that this looks like a more generic example. The query itself is not that important. What I want to ask is this:

Evet. Şu esas kadar hiç IEnumerable ve IEnumerator interfacelerini kullanmadım diyebiliriz. Hadi gelin şimdi bu interfaceleri yegâne uslu ele alalım ve bu sırada mafevkdaki satırlarda bahsettiğimiz GetEnumerator metodunuda tam teferruatlı masaya yatıralım.

System.Collections.IEnumerator. This interface provides the infrastructure to allow the caller to traverse the internal objects contained by the IEnumerable-compatible container:

I noticed that if I use "Distinct", the "inner" contains 6 items (this is incorrect birli only 2 are Distinct), but the "outer" does contain the correct values. Again, probably the delegated methods determine this but this is a bit more than I know about IEnumerable.

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

IEnumerable and IEnumerator are both interfaces. IEnumerable has C# IStructuralComparable Kullanımı just one method called GetEnumerator. This method returns (as all methods return something including void) another type which is an interface and that interface is IEnumerator. When you implement enumerator logic in any of your collection class, you implement IEnumerable (either generic or non generic).

Yield ile kendimiz named iteretor'ler oluşturabiliriz. Örneğin yetişekımızın 750TL den elan pahalı ürünleri getirmesini istiyoruz:

There are pros and cons to both. If you call ToList, you may remove some mystery C# IStructuralComparable Nasıl kullanılır bey to when the query gets executed. If you stick to IEnumerable, you get the advantage that the yetişek doesn't do any work until C# IStructuralComparable Nasıl kullanılır it's actually required.

" This is false, because the where clause is getting called on an IEnumerable and that C# IStructuralComparable nedir 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 C# IStructuralComparable Temel Özellikleri would happen in SQL and this answer would make sense.

means that "var myResult" contains all elements from myEnumerableList, only when this element (here, called 'u')saf a property userId that is equal to "Yusuf"

Bu interface, uygulandığı sınıfa GetEnumerator adlı bir metot kazanmıştırrır ve bu metot geriye IEnumerator interface’ini implement eden bir klas döndürür.

If you are writing a class, and your class implements the IEnumerable interface (generic (T) or derece) you're allowing any consumer of your class to iterate over its collection without knowing how it's structured.