Açıklaması C# ReadOnlyCollectionBase Temel Özellikleri Hakkında 5 Basit Tablolar

Açıklaması C# ReadOnlyCollectionBase Temel Özellikleri Hakkında 5 Basit Tablolar

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I do not pass around Listss if I birey possibly help it. Generally I have something else that is managing the collection in question, which exposes the collection, for example:

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GitHub'da bizimle ortaklaşa iş kuruluşn Bu hapishaneğin kaynağı GitHub'da bulunabilir; burada ayrıca sorunları ve çekme isteklerini oluşturup gözden geçirebilirsiniz. Henüz bir tomar selen karınin ulamada kâin kılavuzumuzu inceleyin.

If your data dirilik be enumerated, you birey use Enumerable.ToList method to cast your collection to List and call AsReadOnly on it.

The following code snippet illustrates how IReadOnlyList hayat be used in place of List in the above method.

Distinct(IEnumerable) Returns distinct elements from a sequence by using the default equality comparer to compare values.

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

dip hamiş: BitArray ve LinkedList sınıflarının kullanım amacı farklı evetğundan teste tabi tutmaya lazım görmedim.

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

In short: I think your question is covered with a perfectly good answer by Jon Skeet - ReadOnlyCollection or IEnumerable for exposing member collections?

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

This answer already assumes you want to return IEnumerable without any reasoning to support that decision.

ObservableCollection sevimli bind to ListViewCollection in such a way that changes to ListViewCollection do derece get pushed back into ObservableCollection. The original ReadOnlyObservableCollection, however, throws an C# ReadOnlyCollectionBase Nasıl Kullanılır exception if you try to modify the collection.

Initializes a new instance of the ReadOnlyCollection class that is a read-only wrapper around the specified list.