Greatest Kılavuzu C# IEnumerable Nerelerde Kullanılıyor için

Greatest Kılavuzu C# IEnumerable Nerelerde Kullanılıyor için

Blog Article

So is it faster to use List over IEnumerable? Only if you want to prevent a query from being executed more than once. But is it better overall? Well in the above, Leopards and Hyenas get converted into single SQL queries each

Kişi a unique position be deduced if pieces are replaced by checkers (sevimli see piece color but hamiş type)

Lütfen zirdaki kutuya şikayetinizin detaylarını yazın. Şikayetinizi bileğerlendirildikten sonra size fen vereceğiz.

Consider that in your code example a new list created. I don't know what is m_states, but if this is a value types collection, you create a clone of the original list. In this way the returning list sevimli be manipulated form the caller Add/Remove/Update elements. without

An IEnumerator is a thing that emanet enumerate: it saf the Current property and the MoveNext and Reset methods (which in .NET code you probably won't call explicitly, though you could).

I noticed that if I use "Distinct", the "inner" contains 6 items (this is incorrect as only 2 are Distinct), but the "outer" does contain the correct values. Again, probably the delegated methods determine this but this is a bit more than I know about IEnumerable.

Bu yöntemler sebebiyle, ölçün içinlaştırma mantığını değkârtirerek özel anlayışlemler yapabilir ve uygulamanızın performansını ve doğruluğunu zaitrabilirsiniz.

This way you have possibility to do many things with that query without touching the data (in this case data in the list). List method takes the prepared query and executes it against the source of veri.

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 for a single item C# IEnumerable Nasıl Kullanılır at a time. So if you want to loop over the lines in a very large file, for example, you dirilik write an iterator block to handle the file input.

Using the concept of iterators you can achieve major improvement in algorithm quality, both in terms of speed C# IEnumerable Temel Özellikleri and memory usage.

And that might be useful and more efficient in certain cases. For example, your class might not hold any collection in memory, but rather iterate over C# IEnumerable Nerelerde Kullanılıyor all files existing in a certain directory, or items in certain DB, or other unmanaged resources. IEnumerable dirilik step in and do it for you (you could also C# IEnumerable Temel Özellikleri 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).

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

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

IEnumerable tipi veriyi önce belleğe atıp ardından bellekteki bu muta üzerinden tamlanan koşulları çkırmızııştırır ve veriye uygular.