5 Basit Teknikleri için C# IEnumerable Nerelerde Kullanılıyor

5 Basit Teknikleri için C# IEnumerable Nerelerde Kullanılıyor

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Implementation of IEnumerable is generally the preferred way for a class to indicate that it should be usable with a "foreach" loop, and that multiple "foreach" loops on the same object should operate independently.

Anything in .Safi that you emanet iterate over implements IEnumerable. If you're building your own class, and it doesn't already inherit from a class that implements IEnumerable, you birey make your class usable in foreach statements by implementing IEnumerable (and by creating an enumerator class that its new GetEnumerator method will return).

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The following code example demonstrates the best practice for iterating a custom collection by implementing the IEnumerable and IEnumerator interfaces. In this example, members of these interfaces are derece explicitly called, but they are implemented to support the use of foreach (For Each in Visual Basic) to iterate through the collection.

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

While it might seem that only array types yaşama make use of this construct, the C# IEnumerable Kullanımı truth of the matter is

The constructor is not responsible for returning veri to the caller. 2-We need to call a method that returns the cars C# IEnumerable Kullanımı array. That is in a real-world case, C# IEnumerable Kullanımı a method that returns an array should be coded in Garage and it should return an array, in which case, there would be no need to use IEnumerable.

The major difference between IQueryable and IEnumerable is that IQueryable executes query with filters whereas IEnumerable executes the query first and then it filters the data based on conditions.

By using IEnumerable in your API, you provide yourself the flexibility to change the internal implementation at any time without changing any other code

This takes an IEnumerator factory function, which usually sevimli be provided very easily instead of the single IEnumerator instance (which yields wrong results after first iteration and breaks the semantics of IEnumerable). This avoids the issues marked by Marc Gravell and establishes full IEnumerable behavior.

a reset on enumerators, but this is largely a design mistake and shouldn't C# IEnumerable Temel Özellikleri be used (it is even a formal requirement in the spec that iterator blocks throw an exception if you call it).

IEnumerable is an interface that defines one method GetEnumerator which returns an IEnumerator interface, this in turn allows readonly access to a collection. A collection that implements IEnumerable birey be used with a foreach statement.

Projeyi yayınladıgınız gün user secrets kullanılmıyor. Bu yalnızca geliştirme aşamasında kullanılabilir.