You Should Know C# IEnumerable Kullanımı Göstergeleri

You Should Know C# IEnumerable Kullanımı Göstergeleri

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@OlivierJacot-Descombes: Short of using Reflection, there's no way of knowing whether an IList which allows anything of a given type to be stored by index will allow everything of that type to be stored by index.

Many of the LINQ methods, including Where, use deferred execution. In this case you birey think of the IEnumerable as a query, rather than the actual result takım.

This where filter is executed on the client side where the IEnumerable code is. In other words all the data is fetched from the database and then at the client its scans and gets the record with EmpId is 2.

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.

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

So if you working with only in-memory data collection IEnumerable is a good choice but if you want to query data collection which is connected with database `IQueryable is a better choice bey it reduces network traffic and uses the power of SQL language.

Ryan LundyRyan Lundy 208k4141 gold badges183183 silver badges214214 bronze badges 3 4 Then why do we need this IEnumerable abstraction, if C# IStructuralComparable Temel Özellikleri the only thing it does is just provide an access to Enumerator? Why don't just use Enumerator instead

ServyServy 203k2727 gold badges342342 silver badges458458 bronze badges 1 @Jay thanks, just noticed that when re-reading.

Bu şekilde derlem dâhilindeki elemanlara sırasıyla C# IStructuralComparable nerelerde kullanılıyor ulaşım katkısızlanabilir. Dunda bu tasarrufı gösteren bir örnek bulunmaktadır:

Örneğin, bir List veya ArrayList gibi koleksiyonların bâtınindeki verileri sıralı bir şekilde vira etmek veya sınırlı bir koşula bakılırsa filtrelemek bağırsakin IEnumerator C# IEnumerable Nasıl Kullanılır kullanılabilir. Bu, nominalm ihya sürecinde verimliliği artırır ve kodun okunabilirliğini iyileştirir.

What US checks and balances prevent the FBI from raiding politicians unfavorable to the federal government?

Consider the below simple code which C# IStructuralComparable Nasıl kullanılır uses IEnumerable with entity framework. It’s using a Where filter to get records whose EmpId is 2.

In simple words other major difference is that IEnumerable execute select query on server side, load veri in-memory on client side and then filter data while IQueryable execute select query on server side with all filters.

You C# IStructuralComparable Temel Özellikleri should still avoid declaring the parameter type as List. Using IList allows the caller to pass arrays and any other objects whose type implements IList.