Açıklaması C# ReadOnlyCollectionBase Temel Özellikleri Hakkında 5 Basit Tablolar

Açıklaması C# ReadOnlyCollectionBase Temel Özellikleri Hakkında 5 Basit Tablolar

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But yeah, I would have to agree that there's definitely a "hole" in the BCL where a read-only indexed collection interface should go. IList is just too multi-purpose.

Simply put, Microsoft defined a ReadOnlyCollectionBase, yet did hamiş use it kakım the base class for ReadOnlyCollection when it clearly sounds that this should have been the way.

Hayat you arrange 25 whole numbers (not necessarily all different) so that the sum of any three successive terms is even but the sum of all 25 is odd?

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

A collection that is read-only is simply a collection with a wrapper that prevents modifying the collection; therefore, if changes are made to the underlying collection, the read-only collection reflects those changes.

For this collection to be useful, however, you need to be able to load that internal list with your collection. The easiest way to do that is to add a constructor to the class that accepts the List to be put in the class' UnderlyingList collection (again, I'm accepting C# ReadOnlyCollectionBase Kullanımı anything that implements the IList interface with the data type specified by T): Public Sub New(InitialList Birli IList(Of T)) UnderlyingList = InitialList

If you're tolerant of some "noise" in your own encapsulated code then I C# ReadOnlyCollectionBase Nedir would suggest wrapping a T[] array and exposing C# ReadOnlyCollectionBase Kullanımı an IList which happens to be a ReadOnlyCollection:

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.

Finally, the code example creates an array larger than the collection and uses the CopyTo method to insert the elements of the collection into the middle of the array.

So when i have this piece of code what is the easiest or best way to make it a read only collection?

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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The following code example demonstrates several members of the ReadOnlyCollection class. The code example creates a List of strings and adds four dinosaur names to it. The code example then wraps the list in a ReadOnlyCollection.

In the class that exposes C# ReadOnlyCollectionBase Temel Özellikleri a read-only property based on PhvReadOnlyList, you still need an ordinary List, with its Add and Remove methods, so that your class birey put items in the List both before and after creating a PhvReadOnlyList from it.