Detaylar, Kurgu ve C# ReadOnlyCollectionBase Nedir

Detaylar, Kurgu ve C# ReadOnlyCollectionBase Nedir

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The collection used here is clearly mutable in nature. So how do you prevent this veri from being changed?

 

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

Birli the last point states, you shouldn't avoid ReadOnlyCollection like you were suggesting. It is a very useful type to use for public members to inform the consumer of the limitations of the collection they are accessing.

This base class is provided to make it easier for implementers to create a generic read-only custom collection. Implementers are encouraged to extend this base class instead of creating their own.

You sevimli expose private collection properties to EF, allowing for mapping and querying, while still keeping your domain object's members and relationships properly encapsulated. It's a bit messy, but it works:

Istifham 1: C# Metot nedir? C# Metot, belli bir anlayışlevi yerine getiren harf bloklarını bâtınermiş yapılardır. Metotlar, kodun baştan kullanılabilirliğini zaitrır ve şifre kompozitşıklığını azaltır.

GitHub'da bizimle ortaklık konstrüksiyonn Bu içeriğin kaynağı GitHub'da bulunabilir; burada başkaca problemlerı ve çekme isteklerini oluşturup gözden C# ReadOnlyCollectionBase Kullanımı geçirebilirsiniz. Elan zait malumat karınin katkıda mevcut kılavuzumuzu inceleyin.

To guarantee thread safety during enumeration, you kişi lock the collection during the entire enumeration. To allow the collection to be accessed by multiple threads for reading and writing, you must implement your own C# ReadOnlyCollectionBase Nasıl Kullanılır synchronization.

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

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

Collaborate with us on GitHub The source for this content sevimli be found on GitHub, where you dirilik also create and review C# ReadOnlyCollectionBase Nasıl Kullanılır issues and pull requests. For more information, see our contributor guide.

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 veri type, I just use the T reference. Finally, I've chosen to have this class implement the generic version C# ReadOnlyCollectionBase Nedir 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.

DefaultIfEmpty(IEnumerable, TSource) Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.