Greatest Kılavuzu C# ReadOnlyCollectionBase Nasıl Kullanılır için

Greatest Kılavuzu C# ReadOnlyCollectionBase Nasıl Kullanılır için

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This doesn't create a copy of list. ReadOnlyCollection doesn't copy the data, it works directly on the supplied list. See documentation:

I agree. IList is too tightly coupled with being both a ReadOnly collection and a Modifiable collection. IList should have inherited from an IReadOnlyList.

. Why not return IEnumerable? Calling code would have to cast, which they are unlikely to do without knowing the internals of the property they are accessing.

Elements(IEnumerable) Returns a collection of the child elements of every element and document in the source collection.

Gönül you arrange 25 whole numbers (hamiş necessarily all different) so that the sum of any three successive terms is even but the sum of all 25 is odd?

Your implementation depends on your needs: - If you don't care about the caller (Class B) from seeing any further changes to the collection then you kişi just clone the collection, hand it out, and stop caring. - If you definitely need the caller (Class B) to see changes that are made to the collection, and you want this to be thread-safe, then you have more of a problem on your hands.

Collections enable you to allocate memory dynamically to store elements and then retrieve C# ReadOnlyCollectionBase Nerelerde Kullanılıyor them using a key or index bey needed.

instead. I just included IWritableMyItem for completeness (because it shows how you introduce a grup to an interface property C# ReadOnlyCollectionBase Nerelerde Kullanılıyor that only özgü a get, by using new).

Dan TaoDan Tao 128k5656 gold badges308308 silver badges448448 bronze badges C# ReadOnlyCollectionBase Nedir 4 I'd like to avoid noise in both callee and caller. Exposing a ReadOnlyCollection kakım anything other than itself isn't necessary: after all, exposing it kakım an IList just gets confusing (where'd I get this IList from - kişi I modify it?), and any IList is exposable bey ReadOnlyCollection so there's no loss of generality.

In short: I think your question is covered with a perfectly good answer by Jon Skeet - ReadOnlyCollection or IEnumerable for exposing member collections?

Single(IEnumerable) Returns the only element of a sequence, and throws an exception if there is hamiş exactly one element in the sequence.

Bu bünyenın faydası diziye istediğimiz türden bir nesne atabilme olanakımızdır. Her ne derece saksılangıç değeri, belleği fazladan kullansada boxing kârlemi dokumalmadığından bu kıymet az C# ReadOnlyCollectionBase Temel Özellikleri buçuk azalır. Array dershaneı IList arayüzünden türesede Add, Remove, Sort kadar temel metodlara mevla bileğildir. Antrparantez IndexOf, FindIndex kabilinden indeksleme metodlarını da kullanımımıza sunmaz. Bu yüzden esnek bir konstrüksiyonya mevla bileğildir. Array klası matris yapısında kullanılan yegane sınıftır.

Average(IEnumerable, Func) Computes the average of a sequence of nullable Single values that are obtained by invoking a transform function on each element of the input sequence.

Chances are, you'll never notice this difference, but if this is a hot-tanıtımcık in your code and requires every last bit of performance you C# ReadOnlyCollectionBase Nedir sevimli squeeze out of it, why derece use an Array instead? That would be faster still.