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ArrayList: ArrayList derslikı, değişken boyutlu ve nesnelerin bir koleksiyonunu saklamak karınin kullanılır ve IEnumerator ile elemanlarına erişim esenlanabilir.
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Now the thing to note is that IEnumerable brought all the 5 records present in Salary table and then performed an in-memory filteration on the client side to get ferde 2 records. So more veri (3 additional records in this case) got transferred over the network and ate up the bandwidth unnecessarily.
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Although there are uses of IEnumerable other than "foreach", the olağan indication that one should implement IEnumerable is that the class is one where it would make sense to say "foreach foo in classItem foo.do_something(); .
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The primary difference is that the LINQ operators for IQueryable take Expression objects instead of delegates, meaning the custom query logic it receives, e.g., a predicate or value selector, is in the form of an expression tree instead of a delegate to a method.
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) without affecting original veri." is confusing. Do you mean that C# IStructuralComparable nedir the new list returned dirilik been added to, and elements dirilik be removed but no updates? I thought that because it returned ienumerable you dirilik modify the elements in the list, C# IStructuralComparable nerelerde kullanılıyor i.e. change a property like you said but you dirilik't add and remove items in the list. Is that correct?
Örneğin, bir List yahut ArrayList kabil koleksiyonların bâtınindeki verileri sıralı bir şekilde kabul etmek yahut belirli bir koşula bakarak filtrelemek sinein IEnumerator kullanılabilir. Bu, yazılı sınavm ihya sürecinde C# IStructuralComparable nedir verimliliği zaitrır ve kodun okunabilirliğini iyileştirir.
This takes an IEnumerator factory function, which usually can be provided very easily instead of the single IEnumerator instance (which yields wrong results C# IStructuralComparable nerelerde kullanılıyor after first iteration and breaks the semantics of IEnumerable). This avoids the issues marked by Marc C# IStructuralComparable Nasıl kullanılır Gravell and establishes full IEnumerable behavior.
There's also the issues of deferred execution and unmanaged resources. IEnumerable takes use of the yield syntax, which mean you go over each item by-itself and birey perform all kinds of computations before and after. And again, this happens one-by-one, so you don't have to hold all the collection when you start. The computations won't actually be performed until the enumeration begins (i.e. until you run the foreach loop).
Joel CoehoornJoel Coehoorn 410k114114 gold badges576576 silver badges808808 bronze badges 3 3 The key of IEnumarable is that the backing collection is not enumerated until specifically expanded, be it a foreach or accessor via an indexer. Unfortunately IEnumarable seems to be blindly used birli the lowest interface which now causes problems with asynchronous veri manipulation (e.
In addition to all the answers posted above, here is my two cents. There are many other types other than List that implements IEnumerable such ICollection, ArrayList etc.