En iyi Tarafı C# ReadOnlyCollectionBase Temel Özellikleri
En iyi Tarafı C# ReadOnlyCollectionBase Temel Özellikleri
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This doesn't create a copy of list. ReadOnlyCollection doesn't copy the veri, it works directly on the supplied list. See documentation:
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Bu tür senaryolarda, IStructuralEquatable arabirimi yardımıyla koleksiyonların yapısını ve dâhilğini düz bir şekilde hakkındalaştırarak tatbik başarımını artırabilir ve bilgi manipülasyon fiillemlerini güvenilen bir şekilde gerçekleştirebilirsiniz.
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.
Passing IList/IDictionaries is generally no good because I dirilik't communicate nor enforce the read-only nature of those views (so e.g. IList is actively worse than an array here)
Average(IEnumerable, Func) Computes the average of a sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.
1. The reason for not choosing ReadOnlyCollectionBase is simple - it isn't generic, while the aim of ReadOnlyCollection is to be generic. Thus it needs a much different inheritance tree.
It depends on how much you trust the calling code. If you're in complete control over everything that will ever call this member and you guarantee
I've implemented AReadOnlyList bey a read-only property because I'm assuming that if you don't want programs adding or C# ReadOnlyCollectionBase Kullanımı removing items from your collection, you probably don't want programs shoving whole new collections into your property, either. Simplifying Code with Extension Methods
In short: I think your question is covered with a perfectly good answer by Jon Skeet - ReadOnlyCollection or IEnumerable for exposing member collections?
ICollection is such C# ReadOnlyCollectionBase Temel Özellikleri abstraction and you could say that ICollection does not have an exact corresponding peer in the generic world; IEnumerable is the closest.
Bu gestaltnın C# ReadOnlyCollectionBase Nasıl Kullanılır faydası diziye istediğimiz türden bir nesne atabilme olanakımızdır. Her ne denli kellelangıç kıymeti, belleği fazladan kullansada C# ReadOnlyCollectionBase Nerelerde Kullanılıyor boxing fiillemi bünyelmadığından bu kadir az buçuk azalır. Array derslikı IList arayüzünden türesede Add, Remove, Sort üzere temel metodlara sahip değildir. Hassaten IndexOf, FindIndex kadar indeksleme metodlarını da yararlanmaımıza sunmaz. Bu yüzden esnek bir dokumaya mevla bileğildir. Array derslikı matris bünyesında kullanılan yegane sınıftır.
Upgrade to Microsoft Edge C# ReadOnlyCollectionBase Nasıl Kullanılır to take advantage of the latest features, security updates, and technical support.
In the class that exposes a read-only property based on PhvReadOnlyList, you still need an ordinary List, with its Add and Remove methods, so that your class dirilik put items in the List both before and after creating a PhvReadOnlyList from it.