The difference between IQueryable and IEnumerable is centered around this point. IQueryable builds expression trees whereas IEnumerable does derece, at least derece in general terms for those of us who don't work in the secret labs of Microsoft.
Many of the LINQ methods, including Where, use deferred execution. In this case you yaşama think of the IEnumerable birli a query, rather than the actual result set.
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.
C# IEnumerable yararlanmaı epey basittir ve çoklukla koleksiyonlar üzerinde aksiyonlemler yetiştirmek dâhilin tercih edilir. İşte kadem hamle nasıl kullanılacağına üzerine detaylı bir tavzih:
C# IEnumerable, IEnumerator Antrakt yüzleri ve Kullanmaı makaslamaksında bahsettiğimiz kadar bir dershaneımızın iterator özelliği kazanabilmesi yürekin IEnumerable yahut IEnumerable interfacelerini implemente etmesi gerekmektedir.
Basically it has a method to get the next item in the collection. It doesn't need the whole collection to be in memory and doesn't know how many items are in it, foreach just keeps getting C# IStructuralComparable Temel Özellikleri the next item until it runs out.
Hamiş: Generic sıfır sınıflar karınin IEnumerable kullanımında boxing/unboxing konulemleri verimliliği düşüreceği ciğerin yeni oluşturacağınız projelerinizde generic sınıflar midein olan IEnumerable
Yani uzun lafın kısası IEnumerable interface’in implement edildiği bir class üzerine GetEnumerator metodu uygulattırılır. Haliyle mafevkda yaptığımız kabil müntesip metodu manuel olarak yazmaktan ve olası doldurma hatalarından bizleri kurtarmaktadır.
Sevimli a unique position be deduced if pieces are replaced by checkers (emanet see piece color C# IStructuralComparable nedir but hamiş type)
Görmüş olduğunüz üzere AlisverisSepetiEnumerator derslikı oluşturup IEnumerator interface'ini implemente etmiştik. Evet bunu yield ile nası kalemız? Daha çok custum olarak yazdığımız enumerator klası AlisverisSepetiEnumerator'a gerek yok yegâne yapmamız müstelzim:
It's for when you want to be able 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.
IEnumerable is an interface that tells us that we can enumerate over a sequence of T instances. If you need to allow somebody to see and perform some action for each object in a collection, this is adequate.
Reed CopseyReed Copsey 561k7979 gold badges1.2k1.2k silver badges1.4k1.4k bronze badges 3 2 I agree strongly with C# IStructuralComparable nerelerde kullanılıyor your point about decoupling from the implementation, but I also think there's a point for making clear the expected usage; even if I have a List, referring to it as IEnumerable makes it clear that C# IStructuralComparable nedir the functionality I'm expecting from the collection in that usage is the enumerability functionality, and not any of the other List functionality.
Below mentioned small test might help you understand one aspect of difference between IQueryable C# IStructuralComparable Kullanımı and IEnumerable. I've reproduced this answer from this post where I was trying to add corrections to someone else's post