Benim C# IEnumerable Nedir Başlarken Çalışmak

Benim C# IEnumerable Nedir Başlarken Çalışmak

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The difference between IQueryable and IEnumerable is centered around this point. IQueryable builds expression trees whereas IEnumerable does not, at least derece in general terms for those of us who don't work in the secret labs of Microsoft.

So when you have to simply iterate through the in-memory collection, use IEnumerable, if you need to do any manipulation with the collection like Dataset and other veri sources, use IQueryable

IEnumerator arayüzü, bilgi konstrüksiyonlarına umumi bir erişim yöntemi esenlayarak kodun henüz modüler olmasını ve bakımının kolaylaşmasını esenlar. Hatta, C# programlamada yaygın olarak kullanılan bu yol, kodun okunabilirliğini artırır ve yeni baştan kullanılabilirliği isteklendirme fiyat.

If on the second house, I decide to alter the price (say add one million dollars to the price) - the entire list would change (the order is now different). "one at a time" and "all of them right now" are two different things.

An Enumerable is a class that sevimli give you Enumerators. It has a method called GetEnumerator which gives you an Enumerator that looks at its items. When you write a foreach loop in C#, the code that it generates calls GetEnumerator to create the Enumerator used by the loop.

They usually have a GetXXX method that returns a IEnumerable of whatever type the custom collection class uses so the internal collection birey be iterated around using a foreach loop.

The "inner" member does derece have "Animal" instances in it, but rather "Species" instances, which was very strange for me. C# IEnumerable Temel Özellikleri The "outer" member does contain "Animal" instances. I presume that the two delegates determine which goes in and what goes out of it?

This way you have C# IEnumerable Nerelerde Kullanılıyor possibility to do many things with that query without touching the veri (in this case veri in C# IEnumerable Nasıl Kullanılır the list). List method takes the prepared query and executes it against the source of veri.

Usually you don't use IEunumerable directly. It is the base class C# IEnumerable Nasıl Kullanılır for a number of other collections that you are more likely to use. IEnumerable, for example, provides the ability to loop through a collection with foreach.

Doğrusu IEnumerable mimarisında filtreleme medarımaişetlemleri memory bile strüktürlırken, IQueryable da veritabanından dikme filtrelenmiş verileri elde ederiz.

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.

Evet hoca, onca yazdın çizdin anladıkta iki satır IEnumerable yahut IEnumerator interfacelerini kullanmadın?

Bu interface, uygulandığı sınıfa GetEnumerator adlı bir metot kazandırır ve bu metot geriye IEnumerator interface’ini implement fail bir klas döndürür.

The most important thing to realize is that, using Linq, the query does not get C# IEnumerable Nerelerde Kullanılıyor evaluated immediately. It is only run as part of iterating through the resulting IEnumerable in a foreach - that's what all the weird delegates are doing.