2 Dakika Kural için C# IEnumerable Temel Özellikleri

2 Dakika Kural için C# IEnumerable Temel Özellikleri

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IEnumerable tüm verileri düzenıp memory bile tutarak, sorgulama kârlemlerini memory üzerinden yaparken IQueryable ise şartlara demetlı query oluşturarak elden veritabanı üzerinden sorgulama ustalıklemi yapar.

Many of the LINQ methods, including Where, use deferred execution. In this case you güç think of the IEnumerable kakım a query, rather than the actual result set.

The second method allows only List objects to be passed in; it will hamiş accept an array or a String object. Obviously, the first method is better because it is much more flexible and dirilik be used in a much wider range of scenarios.

Analogy: Imagine you are a detective on an aeroplane . You need to work your way through all the passengers to find your suspect.

I have writen about custom IEnumerator. Whats the simplest way to make IEnumerable from it ? Ideal solution (one line of code) would be if there was some class for that purpose. Or do I have to create my own ?

IEnumerator is a class that enumerates collections. A class that implements IEnumerable returns an IEnumerator. A class C# IEnumerable Temel Özellikleri that implements IEnumerator özgü custom enumeration logic.

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

IEnumerable and IEnumerator are both interfaces. C# IEnumerable Temel Özellikleri IEnumerable özgü just one method called GetEnumerator. This method returns (kakım all methods return something including void) another type which C# IEnumerable Nerelerde Kullanılıyor is an interface and that interface C# IEnumerable Nedir is IEnumerator. When you implement enumerator logic in any of your collection class, you implement IEnumerable (either generic or non generic).

Nobody mentioned one crucial difference, ironically answered on a question closed birli a duplicated of this. IEnumerable is read-only and List is derece.

Bu, yazılı sınavmın standardını artırır ve olası hataları erken aşamalarda tespit etmeyi kolaylaştırır.

Will I run into issues if I connect a shunt 50 ohm resistor over a high impedance input pin on an IC?

Bir ahir elementin varlığını sınayan MoveNext ve geçerli elementi veren GetCurrent metodlarına sahiptir.

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

By "functionally equivalent," I mean that's actually what the compiler turns the code into. You sevimli't use foreach on baz C# IEnumerable Nedir in this example unless