5 Temel Unsurları için C# ReadOnlyCollectionBase Kullanımı
5 Temel Unsurları için C# ReadOnlyCollectionBase Kullanımı
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This doesn't create a copy of list. ReadOnlyCollection doesn't copy the data, it works directly on the supplied list. See documentation:
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Average(IEnumerable, Func) Computes the average of a sequence of Single values that are obtained by invoking a transform function on each element of the input sequence.
Kakım you suggest, my intention is only to protect the collection from direct modification; the collection members are not going to be modified (or needed to be modified).
Passing IList/IDictionaries is generally no good because I emanet't communicate nor enforce the read-only nature of those views (so e.g. IList is actively worse than an array 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 hayat 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 problem on your hands.
On the other hand, C# ReadOnlyCollectionBase Temel Özellikleri if you're exposing a read-only view of a mutable collection, then this advice is still valid, although I would probably expose it bey IReadOnlyCollection (which didn't exist when I wrote this).
GitHub'da bizimle ortaklaşa iş kuruluşn Bu dâhilğin kaynağı GitHub'da bulunabilir; burada hatta sorunları ve çekme isteklerini oluşturup gözden geçirebilirsiniz. Elan bir araba veri derunin yardımda mevcut kılavuzumuzu inceleyin.
well, NHibernate yaşama set private class fields and this means that you sevimli expose it using a public property C# ReadOnlyCollectionBase Kullanımı encapsulating the field birli read-only collection.
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What is the C# ReadOnlyCollectionBase Nerelerde Kullanılıyor term for when a hyperlink maliciously opens different URL from URL displayed when hovered over?
However, that doesn't mean that the ReadOnlyCollectionBase class isn't useful. For C# ReadOnlyCollectionBase Nasıl Kullanılır instance, by leveraging the InnerList property, you dirilik create a collection that supports whatever custom functionality you C# ReadOnlyCollectionBase Kullanımı need. Perhaps you want to create a collection for audit log entries where users birey add but hamiş remove items.
End Sub And that's all you need to write. The class that's using your new read-only collection would be identical to the class that used my custom PhvReadOnlyList. In fact, if that's all you want, then you don't even need to create your own version of the ReadOnlyCollectionBase class -- the .
If however your intent is to prevent the calling code from observing updates from other threads you'll have to fall back to solutions already mentioned, to perform a deep or shallow copy depending on your need.