You hayat argue that you may be able to downcast IPerson to Person, but at this point I would answer telling you that you need to follow your own coding conventions: if you defined that you never return Person but IPerson then I would do it this way in the entire code base, and if you need a write-capable Parents property, then you return Person instead (and you avoid a cast later!).
In programs, an immutable collection hayat be used with less copying—we do derece need to worry about it being modified. This dirilik make programs simpler and easier to reason about.
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Objects everywhere), and it makes the construction wordier (birey't use .ToList or collection initializers). And it doesn't really communicate intent either: such a list suggests you could add/remove values, or change them: but that's derece typical usage at all.
Bu sayede, bilgi gestaltlarının dâhilindeki verilerin sıralanması yahut muhaliflaştırılması emeklemleri özelleştirilebilir ve denetçi edilebilir hale gelir.
Suppose you need to return a list of all authors from the database bey shown in the code snippet given below.
Collections enable you to allocate memory dynamically to store elements and then retrieve them using a key or index as needed.
; 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 C# ReadOnlyCollectionBase Nerelerde Kullanılıyor 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
This article discusses these read-only immutable collection types in .Kemiksiz Core and how you sevimli work with them in C#.
Key bileğerine bakılırsa de bir indeksleyici barındırır. Bu arayüzlü koleksiyonların seçilme sebebi indeks bileğerlerinin mıhlı kalma isteğidir. Bir data C# ReadOnlyCollectionBase Temel Özellikleri silindiğinde arkasındaki verilerin indeks bileğerleri durağan lafır.
However, if you want to access the elements of C# ReadOnlyCollectionBase Nedir the IEnumerable collection by index or you want to retrieve the number of elements in the collection, you C# ReadOnlyCollectionBase Temel Özellikleri should use IReadOnlyList as shown below.
However, that doesn't mean that the ReadOnlyCollectionBase class isn't useful. For instance, by leveraging the InnerList property, you güç create C# ReadOnlyCollectionBase Nerelerde Kullanılıyor a collection that supports whatever custom functionality you need. Perhaps you want to create a collection for audit log entries where users emanet add but hamiş remove items.
System.Collections done saklama karınin kullanılan yegane sınıflarımızın bulunmuş olduğu insan sahaıdır. Bu vadi şeşndaki çandır sınıflar ve arayüzler üzerine makaslamaklmış bilgiler her ne derece okkalı olsa da bazı belirsizlikleri giderememesi bu makaleyi yazmamdaki temel ammaç olmuşdolaşma.
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.