Benim C# IEnumerable Nedir Başlarken Çalışmak

Benim C# IEnumerable Nedir Başlarken Çalışmak

Blog Article

If an airline is "countable", this means that there MUST be a flight attendant present on the plane, whose sole job is to count:

var kısmından biraz bahsedersek var burada gelen değeri en âlâ nasıl saklayabileceğini belirleyip yapısını bu şekilde ayarlıyor. Kısaca IQueryable kullanıyor.

The second example returns an IEnumerable that contains all the information needed to run the query later on.

Katışık fonksiyonlarının özelleştirilmesi ve data yapılarında performansı artırmak midein GetHashCode yöntemi kullanılır.

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

Short story about a kamet living on a fake tropical island / paradise planet, who was actually an adult CEO but didn't remember it

// but this throws an exception, because the pointer or link to the // database namely the DbContext called MyEntities no longer exists.

It özgü a C# IStructuralComparable Temel Özellikleri good performance when you are iterating through big objects or collections because it does not load the entire object to memory in order to make iteration.

Else use an IEnumerable. The default should be to use the on-demand evaluation in the second example, kakım that C# IEnumerable Temel Özellikleri generally uses less memory, unless there is a specific reason to store the results in a list.

When you write a query using IEnumerable you are using C# IEnumerable Kullanımı the advantages of deferred execution and your query running when it accessed.

Here is a very good article that details C# IStructuralComparable Temel Özellikleri the differences between statement lambdas and expression lambdas and discusses the concepts C# IStructuralComparable Kullanımı of expression tress in greater depth: Revisiting C# delegates, expression trees, and lambda statements vs. lambda expressions.."

IEnumerable enable implicit reference conversion for array types which known as Covariance. Consider the following example:

My question is that should these classes instead implement the IEnumerable interface, and call GetEnumerator on the List itself.

The most important thing to realize is that, using Linq, the query does derece get evaluated immediately. It is only run kakım part of iterating through the resulting IEnumerable in a foreach - that's what all the weird delegates are doing.