En iyi Tarafı C# ReadOnlyCollectionBase Kullanımı
En iyi Tarafı C# ReadOnlyCollectionBase Kullanımı
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Bu muamele izlenceın henüz yavaş çkızılışmasına ve tipin objeye dönüşmesinden dolayı bellekte daha bir küme ülke tutmasına amil olur. Zımnında ne denli az boxing eşittir o derece mahsuldar program.
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Safi 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 derece tied to a specific implementation.
Sum(IEnumerable, Func) Computes the sum of the sequence of Single values that are obtained by invoking a transform function on each element of the input sequence.
Imagine we have existing örnek with Organization => Employees already takım up. To apply this technique, we need to change Organization manken a bit:
Average(IEnumerable, Func) Computes the average of a sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.
4) If you suddenly realise that your collection of choice is inefficient, you birey change the underlying collection type without having to go and change all the places where it got passed birli a parameter (emanet you imagine C# ReadOnlyCollectionBase Nasıl Kullanılır the trouble you might have with, say, List?)
After hopefully understanding your question, i think you have to distinguish between what you create and manage within your class and what you make available to the outside world.
I've implemented AReadOnlyList as a read-only property because I'm assuming that if you don't want programs adding or removing items from your collection, you probably C# ReadOnlyCollectionBase Temel Özellikleri don't want programs shoving whole new collections into your property, either. Simplifying Code with Extension Methods
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However, the syntax is awkward. Adding an extension method birey simplify that syntax tremendously. Extension methods have at least three convenient features: The first is that they attach themselves to whatever classes you specify, automatically appearing in the IntelliSense dropdown lists for those objects; second, they're automatically passed whatever object they're called from kakım their first parameter; third, when an extension method is used with a generic class (for instance, List), the method automatically figures out the data type of the generic parameter.
1 Gotta agree with DarkWanderer here. Collections should be just that: collections. There are many other ways to centralize business logic without breaking the single responsibility principle. Plus, making C# ReadOnlyCollectionBase Nasıl Kullanılır 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 Nasıl Kullanılır element of the input sequence.
The IReadOnlyCollection interface extends the IEnumerable interface and represents a basic read-only collection interface. It also includes a Count property apart from C# ReadOnlyCollectionBase Temel Özellikleri the IEnumerable members kakım shown in the code snippet given below.