C# IEnumerable Nerelerde Kullanılıyor Seçenekler

C# IEnumerable Nerelerde Kullanılıyor Seçenekler

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As mentioned by Mr. Copsey, this katışıksız the benefit of providing decoupling from the implementation, but I'm of the contention that a clear definition of the smallest subset of interface functionality kakım possible (i.

, so if you're doing complicated work to evaluate the enumerable kakım you read from it, that work doesn't happen until it's asked for. This is extra beneficial, because often (say, for searches again) you'll find you might hamiş need to do the work at all.

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

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

This will create a new list element for each element in memory, enumerating the IEnumerable and is thus less performant if you only enumerate once - but safer and sometimes the List methods are handy (for instance in random access).

şayet şimdiye derece forearch yapkaloriı kullandıysanız esasen foreach dokumasında döngüyü sağlayıcı fenomen alttaki listedede görebileceğiniz kabilinden IEnumarable klasından türetilen nesneleri kullanıyor olmamızdır.

C# IEnumerable kullanmaı berenarı basittir ve çoğu kez koleksiyonlar üzerinde sorunlemler ifa etmek derunin yeğleme edilir. İşte adım kadem nasıl kullanılacağına değgin detaylı bir tafsil: Yeni bir klas oluşturun: İlk olarak, IEnumerable arayüzünü yönetmek kucakin bir derlem dershaneı oluşturmalısınız. Örneğin, kötüdaki kadar bir dershane tanımlayabilirsiniz:

This way you have possibility to do many things with that query without touching the C# IStructuralComparable Temel Özellikleri veri (in this case veri in the list). List method takes the prepared query and executes it against the source of veri.

Usually you don't use IEunumerable directly. It is the base C# IEnumerable Temel Özellikleri class for a number of other collections that you are more likely to use. IEnumerable, for example, provides the ability to loop through a collection with foreach.

Is it yasal to initialize an C# IStructuralComparable nedir array via a functor which takes the array itself as a parameter by reference? more C# IStructuralComparable nedir hot questions

Oh sure, you dirilik use it to create your own custom collection types. But for everyday stuff, it probably isn't bey useful bey the collections derived from it.

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

In simple words other major difference is that IEnumerable execute select C# IStructuralComparable Nasıl kullanılır query on server side, load data in-memory on client side and then filter veri while IQueryable execute select query on server side with all filters.

You should still avoid declaring the parameter type bey List. Using IList allows the caller to pass arrays and any other objects whose type implements IList.