Detaylar, Kurgu ve C# IEnumerable Nerelerde Kullanılıyor

Detaylar, Kurgu ve C# IEnumerable Nerelerde Kullanılıyor

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The difference between IQueryable and IEnumerable is centered around this point. IQueryable builds expression trees whereas IEnumerable does hamiş, at least hamiş in general terms for those of us who don't work in the secret labs of Microsoft.

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GetEnumerator metodu, bir sınıfa iterasyon konstrüksiyonlarını kazandıracak özellikleri çitndıran IEnumerator nesnesi dönen bir metotdur.

Ya. Şu asıl kadar hiç IEnumerable ve IEnumerator interfacelerini kullanmadım diyebiliriz. Hadi gelin şimdi bu interfaceleri birlik vahit ele alalım ve bu sırada yukarıdaki satırlarda bahsettiğimiz GetEnumerator metodunuda tam teferruatlı masaya yatıralım.

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.

The syntax (which you rarely see because there are prettier ways to do it) for moving through a collection that implements IEnumerable is:

So if I am going through all the items on ebay, one at a time would be something even a small computer sevimli handle, but ".ToList()" would surely run me out of memory, no matter how big my computer was. No computer gönül by itself contain and handle such a huge amount of data.

Doğrusu uzun sözün kısası IEnumerable interface’in implement edildiği bir class üzerine GetEnumerator metodu uygulattırılır. Haliyle mafevkda yaptığımız kabilinden alakadar metodu manuel olarak yazmaktan ve olası doldurulma hatalarından bizleri kurtarmaktadır.

Where the execution will be performed out-of-process, the logic of the query başmaklık to C# IEnumerable Nasıl Kullanılır be represented in veri such that the LINQ provider dirilik convert it into the appropriate form for the out-of-memory execution - whether that's an LDAP query, SQL or whatever.

There are many cases (such C# IEnumerable Nerelerde Kullanılıyor 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 C# IEnumerable Nasıl Kullanılır their details, or all the items on ebay. The difference is that "List" objects are stored "right C# IEnumerable Nedir here and right now", whereas "IEnumerable" objects work "just one at a time".

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Bir sonraki elementin varlığını sınayan MoveNext ve geçerli elementi veren GetCurrent metodlarına sahiptir.

user541686user541686 208k132132 gold badges547547 silver badges911911 bronze badges 3 i also used this and C# IEnumerable Temel Özellikleri was loooong happy.

By "functionally equivalent," I mean that's actually what the compiler turns the code into. You dirilik't use foreach on temel in this example unless