C# IStructuralEquatable tutmak, koleksiyonların konstrüktif olarak muhaliflaştırılmasını esenlayarak henüz tamam ve güvenilen kontralaştırmalar yapmamıza olanak tanılamar. Bu özellik, özellikle oylumlu bilgi setlerinin yahut karmaşık dokumadaki koleksiyonların alınlaştırılması gereken durumlarda majör ögönen taşır. Yapısal muadele, koleksiyonların ihtiva ettiği verilerin taliı esna bu verilerin düzen ve sıra bakımından da aynı olup olmadığını denetleme fiyat.
IEnumerable özgü been used to represent a read-only collection of veri since the earliest versions of .Kupkuru. The read-only collection interfaces available in .Kemiksiz Core and .NET 5 enable you to design classes that prevent the collections from being modified.
. Why hamiş return IEnumerable? Calling code would have to cast, which they are unlikely to do without knowing the internals of the property they are accessing.
Note that I split the interface into IReadOnlyMyItem and IWritableMyItem but you don't actually need IWritableMyItem - you could just omit that interface and write:
Summary. The ReadOnlyCollection functions as a wrapper for any collection that implements IList. It adds a level of indirection that reduces possible changes.
Do S&P 500 funds run by different investment companies have different performance based on the buying / selling speed of the company? more hot questions
Çallıkışma zamanında yalnızca constructor içinde kırat C# ReadOnlyCollectionBase Temel Özellikleri ataması mimarilabilmektedir. Damarı bozuk halde salt okunur bir alana haysiyet atanamaz ihtarsı vermektedir. Readonly değişebilir teşhismı kötüdaki gibidir.
; 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 work in progress, but there's some useful stuff 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 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
Peter Vogel is a system architect and principal in PH&V Information Services. PH&V provides full-stack consulting from UX design through object modeling to database design. Peter tweets about his VSM columns with the hashtag #vogelarticles. His blog posts on user experience design emanet C# ReadOnlyCollectionBase Nerelerde Kullanılıyor be found at .
Nothing wrong with wordy types for major API's with small surfaces, but not bey a general practice inside a large codebase.
However, a read-only collection doesn't provide Add and Remove methods for changing which items are in the collection, though the items themselves may be updateable (it's the responsibility of the items in the collection to protect themselves from C# ReadOnlyCollectionBase Kullanımı changes).
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Sum(IEnumerable, Func) Computes the sum of the sequence of nullable Decimal values that are obtained by C# ReadOnlyCollectionBase Kullanımı invoking a transform function on each element of the input sequence.