En son beş C# IEnumerable Nasıl Kullanılır Kentsel haber

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If your class is a custom collection class then yes, it should implement IEnumerable. In this case a public property for the inner list would be redundant. Imagine a simple class:

If you maksat to build a public API, it's better to use IEnumerable than List, because you better use the most minimalistic interface/class. List lets you access objects by index if that's required.

The second example returns an IEnumerable that contains all the information needed to run the query later on.

For example, if you do derece need to access items by index, but constantly insert items at the beginning of your collection and then remove items from the end, a Queue would be far more appropriate to use.

Said in a very simple way, that any object implementing this interface will provide a way to get an enumerator. An enumerator is used with the foreach bey one example.

The syntax (which you rarely see because there are prettier ways to do it) for moving through a collection that implements IEnumerable is:

The primary difference C# IEnumerable Kullanımı is that the LINQ operators for IQueryable take Expression objects instead of delegates, meaning the custom query logic it receives, e.g., a predicate or value selector, is in the C# IEnumerable Nasıl Kullanılır form of an expression tree instead of a delegate to a method.

Oluşturduğunuz derslikı, derlem oluştururken yahut alınlaştırma müstelzim vesair senaryolarda kullanabilirsiniz.

IEnumerable describes behavior, while List is an implementation of that behavior. C# IEnumerable Nedir When you use IEnumerable, you give the compiler a chance to defer work until later, possibly optimizing along the way. If you use ToList() you force the compiler to reify the results right away.

C# ile MySQL veritabanından veri listelemek bâtınin C# IEnumerable Nasıl Kullanılır IEnumerable kullanarak hordaki örnek kod kullanılabilir:

Zirdaki sınıfta yaptıklarımızı hamle aşama anlatmadan önce şayet bir sınıfa IEnumerator implemente edilirse hangi metotların implement olacağına değinmek istiyorum. Düzenlediğim haliyle kötüdaki şifre yapısını inceleyelim;

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

IEnumerable is an interface that defines one method GetEnumerator which returns an C# IEnumerable Temel Özellikleri IEnumerator interface, this in turn allows readonly access to a collection. A collection that implements IEnumerable gönül be used with a foreach statement.

You should still avoid declaring the parameter type as List. Using IList allows the caller to pass arrays and any other objects whose type implements IList.