Düşünceler Hakkında Bilmek C# IEnumerable Nedir

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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:

Many of the LINQ methods, including Where, use deferred execution. In this case you birey think of the IEnumerable as a query, rather than the actual result seki.

So unless you want to perform operations that are more efficient on the list, this really does mean lower performance.

Analogy: Imagine you are a detective on an aeroplane . You need to work your way through all the passengers to find your suspect.

In C# 4 and earlier the object obj; is declared outside of the while loop, this changes the behavior of the loop when working with things that capture variables like anonymous functions.

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

IQueryable allows for out-of memory things like a remote veri source, such bey a database or web service.

It is a best practice to implement IEnumerable and IEnumerator on your collection classes to enable the foreach (For Each in Visual Basic) syntax, however implementing IEnumerable is not required. If your collection does derece implement IEnumerable, you must still follow the iterator pattern to support this syntax by providing a GetEnumerator method that returns C# IEnumerable Nedir an interface, class or struct.

The major difference between IQueryable and IEnumerable is that IQueryable executes query with filters whereas IEnumerable executes the query first and then it filters the veri based on conditions.

Örneğin, bir List veya ArrayList kabilinden koleksiyonların ciğerindeki verileri sıralı bir şekilde kaplamak veya makul bir koşula bakarak filtrelemek C# IEnumerable Nedir ciğerin IEnumerator kullanılabilir. Bu, nominalm geliştirme sürecinde verimliliği pozitifrır ve kodun okunabilirliğini iyileştirir.

Bu yöntemler sebebiyle, ölçün alınlaştırma mantığını bileğmaslahattirerek özel teamüllemler C# IEnumerable Temel Özellikleri yapabilir ve uygulamanızın performansını ve doğruluğunu artırabilirsiniz.

The reason, of course, is that someone güç call the first method passing in an array object, a List object, a String object, C# IEnumerable Temel Özellikleri and so on — any object whose C# IEnumerable Nasıl Kullanılır type implements IEnumerable.

IQueryable is a very powerful feature that enables a variety of interesting deferred execution scenarios (like paging and composition based queries).

Here is why it loads twice kakım fewer items bey the first example on average. Let's say probability to find element at any position in the range of files is the same.