Büyülenme Hakkında C# IEnumerable Temel Özellikleri

Büyülenme Hakkında C# IEnumerable Temel Özellikleri

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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 az buçuk bahsedersek var burada mevrut değeri en dobra nasıl saklayabileceğini belirleyip yapkaloriı bu şekilde ayarlıyor. Doğrusu IQueryable kullanıyor.

Different implementations of collections yaşama be enumerable; using IEnumerable makes it clear that what you're interested in is the enumerability, and not the structure of the underlying implementation of the collection.

For example, if you do hamiş need to access items by index, but constantly insert items at the beginning of your collection and then remove items from the end, a Queue would be far more appropriate to use.

Nihayetinde burada ortaya çıdem sonuç; IEnumerable interfaceinin uygulandığı sınıfa zorla GetEnumerator isimli metot implement ettirilmektedir. IEnumerator ise müteallik sınıfa iterasyon meseleleminde kullanılacak elemanları ve özellikleri kazandırmaktan sorumlu olacaktır.

So if you working with only in-memory data 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 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 truth of the matter is

For small result sets this is likely to be a single trip, for large ones C# IEnumerable Temel Özellikleri you're sending a request for more rows from the results, but it doesn't re-run the entire query.

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.

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

Then with a IQueryable the generated SQL will contains “where name = “a”, but with C# IEnumerable Nerelerde Kullanılıyor a IEnumerable many more roles will be pulled back from the database, then the x.name = “a” check will be done by .NET.

IEnumerable is an C# IEnumerable Kullanımı interface that tells us that we emanet enumerate over a C# IEnumerable Kullanımı 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.

Then you'll never have more than one line of the file in memory at a time, and if you finish the loop earlier (perhaps it was a search and you found what you needed) you might not need to read the whole file. Or if you're reading the results from a large SQL query you emanet limit your memory use to a single record.

IEnumerable interface’i ile bir derslik itere edilebilir hale getiriliyor, bu prosedür zarfında GetEnumerator metodu sınıfa implement ediliyordu. IEnumerator interface’i ise iterasyon özelliği kazanmıştırracak ve iterasyon meseleleminde kullanılacak elemanları ve özellikleri çitndırmaktadır.