C# ReadOnlyCollectionBase Temel Özellikleri Ile ilgili detaylı notlar

C# ReadOnlyCollectionBase Temel Özellikleri Ile ilgili detaylı notlar

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

NET 4.5, you may want to try the new read-only collection interfaces. You'll still want to wrap the returned collection in a ReadOnlyCollection if you're paranoid, but now you're hamiş tied to a specific implementation.

Kakım the last point states, you shouldn't avoid ReadOnlyCollection like you were suggesting. It is a very useful type to use for public members to inform the consumer of the limitations of the collection they are accessing.

To work with the code examples provided in this article, you should have Visual Studio 2019 installed in your system. If you don’t already have a copy, you can download Visual Studio 2019 here.

Your implementation depends on your needs: - If you don't care about the caller (Class B) from seeing any further changes to the collection then you gönül just clone the collection, hand it out, and stop caring. - If you definitely need the caller (Class B) to see changes that are made to the collection, and you want this to be thread-safe, then you have more of a mesele on your hands.

Thous leads that your consumer classes are just awaiting interfaces instead of concrete classes and so you gönül change the concrete implementation at a later stage without breaking your public contract (due to performance reasons use an List instead of a LinkedList or vice versa).

Average(IEnumerable, Func) Computes the average of a sequence of nullable Int32 values that are obtained by invoking a transform function on C# ReadOnlyCollectionBase Nerelerde Kullanılıyor each element of the input sequence.

I've implemented AReadOnlyList bey a read-only property because I'm assuming that if you don't want programs adding or removing items from your collection, you probably don't want programs shoving whole new collections into your property, either. Simplifying Code with Extension Methods

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However, if you want to access the elements of the IEnumerable collection by index or you want C# ReadOnlyCollectionBase Nasıl Kullanılır to retrieve the number of elements in the collection, you should use IReadOnlyList bey shown below.

1 Gotta agree with DarkWanderer here. Collections should be just that: collections. There are many other ways to centralize C# ReadOnlyCollectionBase Kullanımı business C# ReadOnlyCollectionBase Nerelerde Kullanılıyor logic without breaking the single responsibility principle. Plus, making your collection more "clever" may actually confuse the using developer more than it helps him.

Average(IEnumerable, Func) Computes the average of a sequence of nullable Single values that are obtained by invoking a transform function on each C# ReadOnlyCollectionBase Nerelerde Kullanılıyor element of the input sequence.

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