IEnumerable bütün verileri aldatmaıp memory bile sara, sorgulama teamüllemlerini memory üzerinden yaparken IQueryable ise şartlara sargılı query oluşturarak aracısız veritabanı üzerinden sorgulama kârlemi yapar.
şu demek oluyor ki çıktı custom bir enumerator derslikı yazmamıza lüzum yok yield keyword'ü ile compiler bunu dal planda bizim dâhilin örgüyor.
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 bütünüyle 2 records. So more veri (3 additional records in this case) got transferred over the network and ate up the bandwidth unnecessarily.
e., using IEnumerable instead of List where possible) provides exactly that decoupling while also requiring proper design philosophy. That is to say, you dirilik achieve decoupling but hamiş achieve minimal dependency, but you cannot achieve minimal dependency without achieving maximal decoupling.
IEnumerable saf just one method whereas IEnumerator katışıksız 2 methods (MoveNext and Reset) and a property Current. For easy understanding consider IEnumerable kakım a box that contains IEnumerator inside it (though hamiş through inheritance or containment). See the code for better understanding:
I noticed that if I use "Distinct", the "inner" contains 6 items (this is incorrect birli only 2 are Distinct), but the "outer" does contain the correct values. Again, probably the delegated methods determine this but this is a bit more than I know about IEnumerable.
IEnumerator interface inden mevrut “Current” propertysinin get metodunda kendi tanılamamladığımız “Current” property’sini return ettik.
So, the first example evaluates the query immediately by calling ToList and putting the query results in a list.
IEnumerable describes behavior, while List is an implementation of that behavior. When you use IEnumerable, you give the compiler a chance to defer work until later, possibly optimizing along the way. If you use ToList() you force the compiler to reify the results right away.
By using IEnumerable in your API, you provide yourself the flexibility to change the internal implementation at any time without changing any other code
It's for when you want to be able C# IEnumerable Nedir to use an object with a foreach loop, but you don't know exactly what type you're dealing with, whether Array, List, or something custom.
Consider the below simple code which uses IEnumerable with entity framework. It’s using a Where filter to get records whose EmpId is 2.
Joel CoehoornJoel Coehoorn 410k114114 gold badges576576 silver badges808808 C# IEnumerable Nedir bronze badges 3 3 The key of IEnumarable is that the backing collection is hamiş enumerated until specifically expanded, be it a foreach or accessor via an indexer. Unfortunately IEnumarable seems to be blindly used bey the lowest interface which now causes problems with C# IEnumerable Nasıl Kullanılır asynchronous data manipulation (e.
Siz bile benim üzere çeşitli .NET platformlarında çeşitli uygulamalar geliştirdiyseniz ve kullandığınız classların arkasındaki mimariyi kaygı ediyor,eliniz her seferinde F12’ye gidiyorsa :) IEnumerable ve IEnumerator interfacelerine biraşırı kez denktaş gelmiş,ve gine siz de benim kadar o gücük tanılamamlar ile yetinememiş C# IEnumerable Kullanımı olmalkaloriız.Ozaman hiç C# IEnumerable Kullanımı lafı uzatmadan gelelim mevzuya.