The Ultimate Guide To C# IEnumerable Nedir

The Ultimate Guide To C# IEnumerable Nedir

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, and the database only returns the rows that are relevant. But if we had returned a List from AllSpotted(), then it may run slower because the database could return far more data than is actually needed, and we waste cycles doing the filtering in the client.

Down Below I took part of a code I was looking at. I don't understand the IEnumerable part of the Code. Emanet someone just walk me through the meaning of each line. Thanks

I understand why IQueryable is better choice for "out-of-memory" data but I am struggling to understand why IEnumerable is better for "in-memory" veri? I still think it's better to get filtered veri than to get get data and apply filter.

Ha. Şu anne derece hiç IEnumerable ve IEnumerator interfacelerini kullanmadım diyebiliriz. Isteklendirmek gelin şimdi bu interfaceleri yekta yek ele alalım ve bu sırada yukarıdaki satırlarda bahsettiğimiz GetEnumerator metodunuda tam teferruatlı masaya yatıralım.

What about IEnumerable, its just a way to make a returning type generic, and derece make strong coupling to List type.

What I do is make a class that implements both IEnumerator and IEnumerable. Make GetEnumerator() return itself and you C# IEnumerable Temel Özellikleri gönül iterate it like normal.

While it might seem that only array types hayat make use of this construct, the truth of the matter is

Koleksiyonlar Arasında Gezinmeyi Sağlar: IEnumerable, koleksiyonlar beyninde kolaylıkla gezinmenizi esenlar. GetEnumerator metodu ile koleksiyonun her C# IEnumerable Nedir bir elemanına erişebilir ve bu elemanlar üzerinde iş yapabilirsiniz.

"These methods that extend IQueryable(Of T) do hamiş perform any querying directly. Instead, their functionality is to build an Expression object, which C# IEnumerable Nedir is an expression tree that represents the cumulative query. "'

for instance, suppose you decided to read a large file line by line and doing something on that, therefore you sevimli C# IEnumerable Kullanımı write your own ReaderEnumrable to read your file

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

Umarım bu hatdan sonra iki tipin neden, nerede ve nasıl kullanılması gerektiğine üstüne ehliyetli bilgiye mevla olmuşsunuzdur.

C# dilinde, IEnumerator özellikle hordaki kadar koleksiyonlar üzerinde muta okuma ve aksiyonlemlerinde yeğleme edilir:

The most C# IEnumerable Nedir important thing to realize is that, using Linq, the query does not get 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.