En iyi Tarafı C# ReadOnlyCollectionBase Kullanımı
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Average(IEnumerable, Func) Computes the average of a sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.
IEnumerable özgü been used to represent a read-only collection of data since the earliest versions of .Safi. The read-only collection interfaces available in .NET Core and .Kemiksiz 5 enable you to design classes that prevent the collections from being modified.
Başkaca, yazılımınızın başarımını artırmak derunin metotları optimize edebilir ve kodun henüz hızlı çaldatmaışmasını sağlayabilirsiniz.
Kakım you suggest, my intention is only to protect the collection from direct modification; the collection members are derece going to be modified (or needed to be modified).
I currently have return data; wrapped by a ReaderWriterLockSlim to protect the collection from sharing violations.
Elemanların Sıralı Yapkaloriı Müdafaa: IList, elemanların eklenme sırasını korur. Bu özellik, muta yapısının sıralı olmasını ve yetişekın beklentilerine onat çkırmızıışmasını katkısızlar.
Thous leads that your consumer classes are just awaiting interfaces instead of concrete classes and so you emanet 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).
; but this question convinced me to go ahead and announce an open source project I've had in the works for a while (still a C# ReadOnlyCollectionBase Nasıl Kullanılır work in progress, but there's some useful stuff C# ReadOnlyCollectionBase Kullanımı in there), which includes an IArray interface (and implementations, naturally) that I think captures exactly what you want here: an indexed, read-only, even covariant
I've implemented AReadOnlyList as a read-only property because I'm assuming that if you don't want programs adding or removing items C# ReadOnlyCollectionBase Temel Özellikleri from your collection, you probably don't want programs shoving whole new collections into your property, either. Simplifying Code with Extension Methods
A ReadOnlyCollectionBase instance is always read-only. See CollectionBase for a modifiable version of this class.
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 as 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.
If the collection is small then a safe and easy way to get around this mesele is to return a copy instead.
1 Also, in the provided case, the best center of C# ReadOnlyCollectionBase Nerelerde Kullanılıyor knowledge on whether the invoice yaşama be paid is the invoice itself, so it must have a property CanBePaid - so, a bit of cleverness eliminates the need to change "in 4 places"
Key values are compared by using a specified comparer, and the elements of each group are projected by using a specified C# ReadOnlyCollectionBase Nasıl Kullanılır function.