IEnumerable tüm verileri kırmızııp memory bile tutarak, sorgulama ustalıklemlerini memory üzerinden yaparken IQueryable ise şartlara ilgilı query oluşturarak vasıtasız veritabanı üzerinden sorgulama teamüllemi yapar.

Anything in .Kemiksiz that you birey iterate over implements IEnumerable. If you're building your own class, and it doesn't already inherit from a class that implements IEnumerable, you yaşama make your class usable in foreach statements by implementing IEnumerable (and by creating an enumerator class that its new GetEnumerator method will return).

I changed the names of my original objects so that this looks like a more generic example. The query itself is derece that important. What I want to ask is this:

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 derece explicitly called, but they are implemented to support the use of foreach (For Each in Visual Basic) to iterate through the collection.

This will create a new list element for each element in memory, enumerating the IEnumerable and is thus less performant if you only enumerate once - but safer and sometimes the List methods are handy (for instance in random access).

Örnekte, kullanıcıların tay olup olmadığını denetçi ederken kullanıcı adları dikkate münfailtır.

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

C# IEnumerator kullanarak MySQL veritabanından data çekip bu verileri DataGridView muayeneüne nasıl ekleyebileceğimizi gösteren örnek kod kötüda dünya almaktadır.

So you have a common IEnumerator-implementing class for all ten, and each collection just özgü to implement C# IStructuralComparable nedir IEnumerable using that enumerating class. It's about separation of concerns, treating holding veri and enumerating data kakım separate operations.

By using IEnumerable in your API, you provide yourself the flexibility to change the internal implementation at any time without changing any other code

IEnumerable ve IQueryable aradındaki başkalıkı anlatmadan önce kısaca bu iki C# IStructuralComparable nerelerde kullanılıyor interface derslikını tanıyalım.

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

In simple words C# IStructuralComparable Kullanımı other major difference is that IEnumerable execute select C# IStructuralComparable Kullanımı query on server side, load veri in-memory on client side and then filter data while IQueryable execute select query on server side with all filters.

Eğer ki siz “var” yönetmek istiyorsanız GetEnumerator metodunun anlayışsız dönüş tipini zirdaki kadar generic IEnumerator olarak tanımlamanız gerekmektedir.