C# ReadOnlyCollectionBase Nerelerde Kullanılıyor Herkes İçin Eğlenceli Olabilir

C# ReadOnlyCollectionBase Nerelerde Kullanılıyor Herkes İçin Eğlenceli Olabilir

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C# IStructuralEquatable harcamak, koleksiyonların yapısal olarak hakkındalaştırılmasını esenlayarak henüz esaslı ve muteber mukabillaştırmalar yapmamıza olanak teşhisr. Bu özellik, özellikle heybetli veri setlerinin veya muhtelitşık bünyedaki koleksiyonların karşıtlaştırılması gereken durumlarda majör örutubet taşır. Konstrüktif muadele, koleksiyonların ihtiva ettiği verilerin katı silsile bu verilerin düzen ve düzen itibarıyla da aynı olup olmadığını kontrolör fiyat.

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

Marc GravellMarc Gravell 1.0m271271 gold badges2.6k2.6k silver badges2.9k2.9k bronze badges 3 1 I would second here on using the readonly keyword for the variable birli well. Without this, anyone might fall into an impression that since the collection is of type ReadOnlyCollection so I'm completely safe from any possibility of changes being done to my collection when it is not the case.

List's are a very common datastructure, but creating them in this fashion involves quite a bit of syntactic noise - and it kişi easily get even worse (e.g.

The IReadOnlyDictionary interface provides a read-only view of a dictionary and represents a read-only collection of key/value pairs. The following code snippet illustrates how you can define an IReadOnlyDictionary instance.

Let’s explore an example of using IReadOnlyList in place of List in order to make our list read-only. Consider the following class:

Thous leads that your consumer classes are just awaiting interfaces instead of concrete classes and so you can change the concrete implementation at a later stage C# ReadOnlyCollectionBase Kullanımı without breaking your public contract (due to performance reasons use an List C# ReadOnlyCollectionBase Nedir instead of a LinkedList or vice versa).

After hopefully understanding your question, i think you have to distinguish between what you create and manage within your class and what you make available to the outside world.

However, it should be noted that while these read-only collection types provide a read-only view of the data, they are only wrappers. They do hamiş provide an immutable copy of the collection.

If you do this then there's nothing stopping your callers casting the IEnumerable back to ICollection and then modifying it. ReadOnlyCollection removes this possibility, although it's still possible to access the underlying writable collection via reflection.

One possibility is to implement your own thread-safe variant of the ReadOnlyCollection to allow locked access, though this will be non-trivial and non-performant if you want to support IEnumerable, and it still

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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 C# ReadOnlyCollectionBase Nerelerde Kullanılıyor 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 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 C# ReadOnlyCollectionBase Nasıl Kullanılır the GetEnumerator method -- but the code is identical in both versions of the method. Listing 1. The basics of the PhvReadOnlyList class.

One should note that aku's answer will only protect the list bey being read only. Elements in the C# ReadOnlyCollectionBase Kullanımı list are still very writable.