Bir İnceleme C# ReadOnlyCollectionBase Temel Özellikleri

Bir İnceleme C# ReadOnlyCollectionBase Temel Özellikleri

Blog Article

Average(IEnumerable, Func) Computes the average of a sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.

Coming soon: Throughout 2024 we will be phasing out GitHub Issues as the feedback mechanism for content and replacing it with a new feedback system. For more information see: .

C# IStructuralEquatable arabirimini uygulayıcı bir klas ile strüktürel muadele denetçiü nasıl yapılır? Zirdaki örnekte bu konuyu detaylı olarak görebilirsiniz:

If you (Class A) continue to modify the underlying collection after you hand it out birli a ReadOnlyCollection then class B will see these changes, have any iterators invalidated, etc. and generally be open to any of the usual concurrency issues with collections.

Bu sayede, data strüktürlarının ciğerindeki verilerin sıralanması yahut zıtlaştırılması anlayışlemleri özelleştirilebilir ve denetleme edilebilir hale hasılat.

Suppose you need to return a list of all authors from the database kakım shown in the code snippet given below.

What's the best way to pass around lists of values without lots of code clutter (such as explicit type parameters) but that still communicates intent clearly?

ElementAtOrDefault(IEnumerable, Index) C# ReadOnlyCollectionBase Nedir Returns the element at a specified index in a sequence or a default value if the index is out of range.

Public static (Shared in C# ReadOnlyCollectionBase Temel Özellikleri Visual Basic) members of this type are thread safe. Any instance members are derece guaranteed C# ReadOnlyCollectionBase Kullanımı to be thread safe.

In short: I think your question is covered with a perfectly good answer by Jon Skeet - ReadOnlyCollection or IEnumerable C# ReadOnlyCollectionBase Temel Özellikleri for exposing member collections?

Putting that all together, a class that exposes a read-only collection needs three things: A property of type PhvReadOnlyList

Nodes(IEnumerable) Returns a collection of the child nodes of every document and element in the source collection.

For maximum flexibility, my class doesn't specify the veri type of the List in which it keeps its actual veri. Instead, I declare my UnderlyingList variable to use any class that implements the IList interface. I've also made this a generic class: Rather than specify what kind of List I'm working with, I've forced my class to be instantiated with a veri type that the code refers to birli T. Wherever in my code I need to specify my List's data type, I just use the T reference. Finally, I've chosen to have this class implement the generic C# ReadOnlyCollectionBase Nedir version of IEnumerable, which requires two versions of the GetEnumerator method -- but the code is identical in both versions of the method. Listing 1. The basics of the PhvReadOnlyList class.

Gürlük: Kuyruk binası, verilerin sıralı olarak fiillenmesi müstelzim sert çok senaryoda kullanılır ve bu boyut yazılımın performansını fazlalıkrabilir.