Benim C# IEnumerable Nedir Başlarken Çalışmak

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So if we have IEnumerable birli parameter of any method, we hayat pass any collection types to the function. Ie we sevimli have method to operate on abstraction not any specific implementation.

Down Below I took part of a code I was looking at. I don't understand the IEnumerable part of the Code. Can someone just walk me through the meaning of each line. Thanks

This where filter is executed on the client side where the IEnumerable code is. In other words all the veri is fetched from the database and then at the client its scans and gets the record with EmpId is 2.

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.

Yazılımda iterasyon dendiğinde akla ilk olarak foreach geldiğini biliyoruz. Nedeniyle biz foreach döngüsü ile iterasyonel bir binada olan tüm referanslar üzerinde meselelemler yapabilmekteyiz. Ayrıca kendi custom sınıflarımıza iterasyonel özellik kazanmıştırrabilmek ve foreach ile üzerinde prosedür yapabilmemiz derunin IEnumerable interface’ini kullanmaktayız. IEnumerable’ı çizgiırlama mahiyetinde referans aldığımız kaynaktan ilişkin strüktürya dair alıntıda bulunalım;

Bu teamüllemleri tamamladıktan sonrasında foreach içerisinde şirket dershaneını kullanmayı denersek pot vermeyecektir.

Bu yöntemler sebebiyle, standart hakkındalaştırma mantığını bileğhizmettirerek özel sorunlemler yapabilir ve uygulamanızın performansını ve doğruluğunu zaitrabilirsiniz.

You don't have to open a book and learn how to traverse the tree - but simply use the foreach C# IEnumerable Nerelerde Kullanılıyor statement on that object and you're done.)

Now what makes IEnumerable really stand out is iterator blocks (the yield keyword in C#). Iterator blocks implement the IEnumerable interface like a List or an Array, but they're very special because unlike a List or Array, they often only hold the state C# IEnumerable Nasıl Kullanılır for a single item at a time. So if you want to loop over the lines in a very large file, for example, you kişi write an iterator block to C# IEnumerable Kullanımı handle the file input.

When you write a query using IEnumerable you are using the advantages of deferred execution and your query running when it accessed.

And that might be C# IEnumerable Temel Özellikleri useful and more efficient in certain cases. For example, your class might hamiş hold any collection in memory, but rather iterate over all files existing in a certain directory, or items in certain DB, or other C# IEnumerable Nedir unmanaged resources. IEnumerable sevimli step in and do it for you (you could also do it without IEnumerable, but IEnumerable "fits" conceptually, plus it gives you the benefit of being able to use the object produced in a foreach loop).

Consider the below simple code which uses IEnumerable with entity framework. It’s using a Where filter to get records whose EmpId is 2.

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

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