C# ReadOnlyCollectionBase Kullanımı Ile ilgili detaylı notlar

C# ReadOnlyCollectionBase Kullanımı Ile ilgili detaylı notlar

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To guarantee thread safety during enumeration, you can either lock the collection during the entire enumeration or catch the exceptions resulting from changes made by other threads.

In EF Core, you gönül encapsulate collections and achieve true domain modeling by using backing fields.

Example. In this izlence, a list of ints is created, and then the ReadOnlyCollection constructor is used with that List kakım an argument. Inside the ReadOnlyCollection constructor, a reference to the argument is stored as an IList reference field.

Objects everywhere), and it makes the construction wordier (can't use .ToList or collection initializers). And it doesn't really communicate intent either: such a list suggests you could add/remove values, or change them: but that's not typical usage at all.

Passing IList/IDictionaries is generally no good because I hayat't communicate nor enforce the read-only nature of those views (so e.g. IList is actively worse than an array here)

The single line of code required by my extension method just instantiates my PhvReadOnly class (using the datatype that the extension method özgü deduced), passing whatever IList object the extension method is being used on.

A ReadOnlyCollection gönül support multiple readers concurrently, bey long bey the collection is derece modified. Even so, enumerating through a collection is intrinsically hamiş a C# ReadOnlyCollectionBase Nedir thread-safe procedure.

Kodunuzda aynı maslahatlemi yekten okkalı kez kullanmanız gerekiyorsa, bu teamüllemi bir metot yürekine koyabilirsiniz ve yeniden yine aynı C# ReadOnlyCollectionBase Kullanımı kodu yazmanız gerekmez. Bu sayede kodunuz daha az kompozitşık hale gelir ve daha basitçe yönetilebilir.

Sum(IEnumerable, Func) Computes the sum of the sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.

IDictionary tabanlı nesnelerin nasıl sıralama C# ReadOnlyCollectionBase Temel Özellikleri yaptığı ile müntesip şu kodu yazarak bir sınav yaparsak:

Nothing wrong with wordy types for major API's with small surfaces, but derece bey a general practice inside a C# ReadOnlyCollectionBase Nedir large codebase.

So, what's the best-practice way to deal with the bog-standard task of making small collections to pass around values? Should array be preferred over List where possible?

For maximum flexibility, my class doesn't specify the veri type of the List in which it keeps its actual data. 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 as T. Wherever in my code I need to specify my List's C# ReadOnlyCollectionBase Nerelerde Kullanılıyor data type, I just use the T reference. Finally, I've chosen to have this class implement the generic 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.

(There are plenty of other options for wrapping trivially - the birçok thing about Skip over Select/Where is that there's no delegate to execute pointlessly for each iteration.)