ArrayList: ArrayList dershaneı, değişebilir boyutlu ve nesnelerin bir koleksiyonunu saklamak kucakin kullanılır ve IEnumerator ile elemanlarına muvasala sağlanabilir.

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

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

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 not explicitly called, but they are implemented to support the use of foreach (For Each in Visual Basic) to iterate through the collection.

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:

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So, the first example evaluates the query immediately by calling ToList and putting the query results in C# IEnumerable Kullanımı 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 C# IEnumerable Temel Özellikleri derece.

This works for read-only access to a collection that implements that IEnumerable birey be used C# IEnumerable Temel Özellikleri with a foreach statement.

Here is a very good article that details the differences between statement lambdas C# IEnumerable Nedir and expression lambdas and discusses the concepts of expression tress in greater depth: Revisiting C# delegates, expression trees, and lambda statements vs. lambda expressions.."

There's also the issues of deferred execution and unmanaged resources. IEnumerable takes use of the yield syntax, which mean you go over each item by-itself and güç perform all kinds of computations before and after. And again, this happens one-by-one, so you don't have to hold all the collection when you start. The computations won't actually be performed until the enumeration begins (i.e. until you run the foreach loop).

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

IEnumerable interface’i ile bir klas itere edilebilir hale getiriliyor, bu muamele ortamında GetEnumerator metodu sınıfa implement ediliyordu. IEnumerator interface’i ise iterasyon özelliği kazandıracak ve iterasyon maslahatleminde C# IEnumerable Kullanımı kullanılacak elemanları ve özellikleri barındırmaktadır.