You've probably identified what pattern the PhvReadOnlyList implements: it's a wrapper. In the .NET Framework 4.0 or earlier, the wrapper class that you'd really use to create a read-only list would be the .Safi ReadOnlyCollectionBase class. Birli with my example, you use the ReadOnlyCollectionBase class to create your own class with whatever functionality you need -- but you don't need to write the GetEnumerator method or create your own UnderlyingList because the ReadOnlyCollectionBase handles both.
I agree. IList is too tightly coupled with being both a ReadOnly collection and a Modifiable collection. IList should have inherited from an IReadOnlyList.
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 kakım 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 derece the case.
This hides Add and Remove methods, but does hamiş protect at all. Because I dirilik always cast to ICollection and call prohibited method.
Imagine we have existing sistem with Organization => Employees already seki up. To apply this technique, we need to change Organization prototip a bit:
Average(IEnumerable, Func) C# ReadOnlyCollectionBase Nerelerde Kullanılıyor Computes the average of a sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.
If your only intent is C# ReadOnlyCollectionBase Temel Özellikleri to get calling code to not make a mistake, and modify the collection when it should only be reading all that is necessary is to return an interface which doesn't support Add, Remove, etc.
Bu, nominalmınızın elan zait özelliğe mevla olmasını sağlamlar ve kullanıcı dostu bir deneyim sunar. üste, C# dilinde birokkalı amade metot da bulunmaktadır ve bunları kullanarak projenizi daha hızlı ve yakıcı bir şekilde vüruttirebilirsiniz.
Public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
When call the above code. The changes happening in the call ---1 is getting reflected the CategoryList and its affecting the call 2 . How dirilik I make the CategoryList kakım ready Only and I am derece supposed to change the collection inside the categoryList .But the collection is getting affected .
ICollection seems like ICollection, but it’s actually a very different C# ReadOnlyCollectionBase Nasıl Kullanılır abstraction. We found that ICollection was hamiş very useful. At the same time, we did not have an abstraction that represented an read/write non-indexed collection.
Enumerating through a collection is intrinsically hamiş a thread-safe procedure. Even when a collection is synchronized, other threads can still modify the collection, which causes the enumerator to throw an exception.
The IEnumerable interface is yet another interface used often to represent C# ReadOnlyCollectionBase Nasıl Kullanılır read-only collections of veri. If you simply want to enumerate the elements of a collection, you can use IEnumerable as shown below.
The IReadOnlyCollection interface extends the IEnumerable interface and represents a basic read-only collection interface. It also C# ReadOnlyCollectionBase Temel Özellikleri includes a Count property apart from the IEnumerable members as shown in the code snippet given below.