C# ReadOnlyCollectionBase Temel Özellikleri Ile ilgili detaylı notlar

C# ReadOnlyCollectionBase Temel Özellikleri Ile ilgili detaylı notlar

Blog Article

This class makes the underlying collection available through the InnerList property, which is intended for use only by classes that are derived directly from ReadOnlyCollectionBase. The derived class must ensure that its own users cannot modify the underlying collection.

Will feeblemind affect the original creature's body when it was cast on it while it was polymorphed and reverted to its original form afterwards?

. Why derece return IEnumerable? Calling code would have to cast, which they are unlikely to do without knowing the internals of the property they are accessing.

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.

Imagine we have existing biçim with Organization => Employees already kaş up. To apply this technique, we need to change Organization örnek a bit:

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

public IEnumerable Employees => EmployeesInternal.Skip(0); // this is property accessor that will be used to define model and/or in `Include` statements, could be marked birli internal if your domain/persistance/services are in the same assembly

An immutable object is defined bey an object that cannot be changed after it katışıksız been created. Derece all collections are immutable, but you güç use the read-only collection types in .

However, it should be noted that while these read-only collection types provide a read-only view of the veri, they are only wrappers. They C# ReadOnlyCollectionBase Nedir do not provide an immutable copy of the collection.

Peter Vogel is a system architect and principal in PH&V Information Services. PH&V provides full-stack consulting from UX design through object modeling to database design. Peter tweets about his VSM columns with the hashtag #vogelarticles. His blog posts on user experience design C# ReadOnlyCollectionBase Kullanımı birey be found at .

Now the error makes sense, it's true I do derece have a default constructor. However I am able to Serialize a ReadOnlyCollection using the DataContractSerializer even though ReadOnlyCollection C# ReadOnlyCollectionBase Kullanımı does C# ReadOnlyCollectionBase Nerelerde Kullanılıyor derece have a parameterless default constructor.

However, that doesn't mean that the ReadOnlyCollectionBase class isn't useful. For instance, by leveraging the InnerList property, you sevimli create a collection that supports whatever custom functionality you need. Perhaps you want to create a collection for audit log entries where users dirilik add C# ReadOnlyCollectionBase Kullanımı but not remove items.

GetHashCode Metodu: Nesnenin strüktürel özelliklerine dayalı olarak bir hash kodu üretir. Bu, koleksiyonların hızlı bir şekilde içinlaştırılmasını sağlamlar.

If however your intent is to prevent the calling code from observing updates from other threads you'll have to fall back to solutions already mentioned, to perform a deep or shallow copy depending on your need.