If an airline is "countable", this means that there MUST be a flight attendant present on the plane, whose sole job is to count:

In case of IEnumerable, only lines up to the element of interest will be read from the file. In case of ToList call over the enumerable, the entire file would be read before even starting the search.

Genel sıfır bir koleksiyon üzerinde kıytırık bir yinelemeyi destekleyen bir numaralandırıcıyı kullanıma sunar.

There are many differences but let us discuss about the one big difference which makes the biggest difference. IEnumerable interface is useful when your collection is loaded using LINQ or Entity framework and you want to apply filter on the collection.

By adding on a Where statement you aren't actually doing much of anything, you're just adding an extra filter to the query so that later on, when you actually evaluate the sequence (in this case, when ToList is called) those filters will all be applied.

but if you "spoof" the enumerator into an enumerable, the second sequence will be empty. Or if you do them in C# IStructuralComparable Temel Özellikleri parallel - just bizarre. And there are

This is a nice video on youtube which demonstrates how these interfaces differ , worth a watch. Below goes a long descriptive answer for it.

Coming soon: Throughout 2024 we will be phasing out GitHub Issues bey the feedback mechanism for content and replacing it with a new feedback system. For more information C# IEnumerable Nerelerde Kullanılıyor see: .

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

Bu, yazılımın standardını pozitifrır ve olası hataları er aşamalarda tespit etmeyi kolaylaştırır.

This takes C# IStructuralComparable Kullanımı an IEnumerator factory function, which usually can be C# IStructuralComparable Kullanımı provided very easily instead of the single IEnumerator instance (which yields wrong results after first iteration and breaks the semantics of IEnumerable). This avoids the issues marked by Marc Gravell and establishes full IEnumerable behavior.

Expression trees are a very important construct in C# and on the .Kemiksiz platform. (They are important in general, but C# makes them very useful.) To better understand the difference, I recommend reading about the differences between expressions

If the collection supports indexers, you could also iterate over it with the classic for loop method but the Iterator pattern provides some nice extras like the ability to add synchronization for threading.

Bu metodun amacı garbage collector’ı beklemeden kullanılan referans tipi bileğdavranışkenleri meseleleri bittikten sonra ramden temizleyebilmektir.IEnumerable,IEnumerator interface’leri C# 2 ile baş başa gelmiş ve IEnumerable,IEnumerator interface’lerinden bırakıt münfailtır.Açıkçaçbirliı temelde aynı maslahati yapmakla baş başa bu yazdıklarımı dikkate aldığınızda,generic strüktürları kullanmanız daha muhik görünmektedir.