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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.

An IEnumerable is a thing that sevimli be enumerated...which simply means that it katışıksız a GetEnumerator method that returns an IEnumerator.

Özellikle Dictionary, HashSet gibi muta dokumalarıyla yan yana kullanılarak özelleştirilmiş hakkındalaştırmalar sağlar. Sonunda, farklı done tipleri veya karmaşık hakkındalaştırma kuralları gerektiren durumlarda kullanıcıevet elastikiyet sağlar.

Said in a very simple way, that any object implementing this interface will provide a way to get an enumerator. An enumerator is used with the foreach as one example.

What I do is make a class that implements both IEnumerator and IEnumerable. Make GetEnumerator() return itself and you hayat iterate it like normal.

IEnumerator interface inden gelen “Current” propertysinin get metodunda kendi teşhismladığımız “Current” property’sini return ettik.

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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 at a time. So if you want to loop over the lines in a very large file, for example, you C# IStructuralComparable Nasıl kullanılır can write an iterator block to handle the file input.

There are many cases (such kakım an infinite list or a very large list) where IEnumerable cannot be transformed to a List. The most obvious examples are all the prime numbers, all the users of feysbuk with their details, or all the items on ebay. The difference C# IStructuralComparable Nasıl kullanılır is that "List" objects are stored "right here and right now", whereas "IEnumerable" objects work "just one at a time".

Then with a IQueryable the generated C# IStructuralComparable Kullanımı SQL will contains “where name = “a”, but with a IEnumerable many more roles will be C# IEnumerable Nedir pulled back from the database, then the x.name = “a” check will be done by .Kemiksiz.

Yukarıdaki C# IStructuralComparable nedir hatada Calisan klasının bir GetEnumerator sineermediğini belirtiyor. Kısaca buradan da şu çıbayanmı yapabiliriz;

C# dilinde, IEnumerator özellikle aşağıdaki gibi koleksiyonlar üzerinde veri okuma ve anlayışlemlerinde tercih edilir:

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.