C# IEnumerable Nerelerde Kullanılıyor Seçenekler

C# IEnumerable Nerelerde Kullanılıyor Seçenekler

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[Edit] - Needless to say - it's hamiş "either this or that". often it would make good sense to use both a list and an IEnumerable in the same class. No computer in the world could list all prime numbers, because by definition this would require an infinite amount of memory. But you could easily think of a class PrimeContainer which contains an IEnumerable primes, which for obvious reasons also contains a SortedList _primes.

şu demek oluyor ki bundan sonra custom bir enumerator sınıfı yazmamıza lüzumlu namevcut yield keyword'ü ile compiler bunu dal planda bizim için örgüyor.

. If you need the results to be evaluated at once (say, you're mutating the structures you're querying later on, or if you don't want the iteration over the IEnumerable to take a long time) use a list.

Now List implements IEnumerable, but represents the entire collection in memory. If you have an IEnumerable and you call .ToList() you create a new list with the contents of the enumeration in memory.

Nihayetinde burada ortaya çısoy sonuç; IEnumerable interfaceinin uygulandığı sınıfa zorla GetEnumerator adlı metot implement ettirilmektedir. IEnumerator ise alakadar sınıfa iterasyon işlemleminde kullanılacak elemanları ve özellikleri kazanmıştırrmaktan mesuliyetli olacaktır.

IEnumerable ve IEnumerator interfaceler’i ile sizlerde oluşturduğunuz sınıflara itere özellikleri kazanmıştırrabilir, hatta IEnumerator interface’i ile oluşturduğunuz enumerator’bile isteğinize bakılırsa iterasyonun periyodunu ayarlayabilir ve foreach döngüsünde kullanabilirsiniz.

The "inner" member does not have "Animal" instances in it, but rather "Species" instances, which was very strange for me. The "outer" member does contain "Animal" instances. I presume that the two delegates determine C# IStructuralComparable Nasıl kullanılır which goes in and what goes out of it?

It is a best practice to implement IEnumerable and IEnumerator on your collection classes to enable the foreach (For Each in Visual Basic) syntax, however implementing IEnumerable is not required. If your collection does hamiş implement IEnumerable, you must still follow the iterator pattern to support this syntax by providing a GetEnumerator method that returns C# IStructuralComparable Kullanımı an interface, class or struct.

Where the execution of a query is going to be performed "in process", typically all that's required is the code (as code) to execute each part of the query.

Örneğin, bir List veya ArrayList kabil koleksiyonların ciğerindeki verileri C# IStructuralComparable nedir sıralı bir şekilde kaplamak yahut makul bir koşula nazaran filtrelemek derunin IEnumerator kullanılabilir. Bu, yazılı sınavm geliştirme sürecinde verimliliği fazlalıkrır ve kodun okunabilirliğini iyileştirir.

" This is false, because the where clause is C# IStructuralComparable Kullanımı getting called on an IEnumerable and that only knows how to loop through objects which are already coming from the database. If you made the return of AllSpotted() and the parameters of Feline() and Canine() into IQueryable, then the filter would happen in SQL and this answer would make sense.

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

Then you'll never have more than one line of the file in memory at a time, and if you finish the loop earlier (perhaps it was a search and you found what you needed) you might derece need to read the whole file. Or if you're reading the results from a large SQL query you yaşama sınır your memory use to a single record.

şayet ki siz “var” tutunmak istiyorsanız GetEnumerator metodunun aptal dhuzurüş tipini hordaki kabilinden generic IEnumerator olarak teşhismlamanız gerekmektedir.