Küçük C# ReadOnlyCollectionBase Nedir Hakkında Gerçekler Bilinen.

Küçük C# ReadOnlyCollectionBase Nedir Hakkında Gerçekler Bilinen.

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My code is littered with collections - derece an unusual thing, I suppose. However, usage of the various collection types isn't obvious nor trivial. Generally, I'd like to use the type that's exposes the "best" API, and katışıksız the least syntactic noise.

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foreach C# dilinin deyimi (for eachVisual Basic'te) numaralandırıcıların kompozitşıklığını gizler. Bu nedenle, numaralandırıcıyı doğrudan işlemek yerine kullanılması foreach önerilir.

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.

Summary. The ReadOnlyCollection functions as a wrapper for any collection that implements IList. It adds a level of indirection that reduces possible changes.

Is there any reason to expose an internal collection kakım a ReadOnlyCollection rather than an IEnumerable if the calling code only iterates over the collection?

A ReadOnlyCollection birey support multiple readers concurrently, bey long birli the collection is hamiş modified. Even so, enumerating through a collection is intrinsically not a thread-safe procedure.

protected virtual ICollection EmployeesInternal get; private takım; = new List(); // this will expose collection contents to public, seemingly unneccessary `Skip` statement will prevent casting back to Collection

So easy, in fact, that I don't need a full column to do it (and if that's all C# ReadOnlyCollectionBase Nedir you want from this column, you can skip to the end where I discuss both the AsReadOnly method and using the ReadOnlyCollectionBase class). What this topic does give me is an excuse to talk about several things: how interfaces in .Kupkuru and the compiler work together; how creating generic C# ReadOnlyCollectionBase Temel Özellikleri classes gives you flexibility; how you dirilik exploit one of the built-in .Kupkuru interfaces; and (finally) how to simplify ugly syntax by building your own extension methods. I also think C# ReadOnlyCollectionBase Nasıl Kullanılır that you don't really understand anything unless you emanet see a way to write it yourself, and this topic lets me do that, too, by showing how you sevimli C# ReadOnlyCollectionBase Kullanımı create the .NET ReadOnlyCollectionBase class. So this column is bey much about providing insight into how .NET works bey it is about doing something practical. Foundation Knowledge

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Nothing wrong with wordy types for major API's with small surfaces, but hamiş birli a general practice inside a large codebase.

Here’s where you can C# ReadOnlyCollectionBase Nerelerde Kullanılıyor take advantage of IReadOnlyList to ensure that the returned data cannot be changed. By changing the return type of the GetAuthors method from List to IReadOnlyList we emanet make our collection read-only.

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.

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