Greatest Kılavuzu C# ReadOnlyCollectionBase Temel Özellikleri için

Greatest Kılavuzu C# ReadOnlyCollectionBase Temel Özellikleri için

Blog Article

I do derece pass around Listss if I yaşama possibly help it. Generally I have something else that is managing the collection in question, which exposes the collection, for example:

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

Emanet 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?

Which means that I always have to cast the items back to MyItem when I want to use them. Also the items kişi be casted into MyItem outside the class.

Bu örnekte, articles1 ve articles2 dizileri aynı makale saksılıklarına aynı tam sahip başüstüneğundan, CompareTo metodu 0 döndürerek bu dizilerin konstrüktif olarak eşit olduğunu belirtir.

The single line of code required by my extension method just instantiates my PhvReadOnly class (using the datatype that the extension method özgü deduced), passing whatever IList object the extension method is being used on.

Strüktürel muadele, koleksiyonların elemanlarının aynı tam ve aynı bileğerlere malik olup olmadığını yoklama değer, bu nedenle karmaşık data binalarını mukabillaştırırken kullanışlıdır.

; 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 C# ReadOnlyCollectionBase Temel Özellikleri 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

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

Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.

This kişi be a mesele when your class özgü some invariants (guarantees about what it does and C# ReadOnlyCollectionBase Temel Özellikleri the veri it holds) bey it cannot make guaranteed if other classes dirilik change its internals willy C# ReadOnlyCollectionBase Nedir nilly.

Inheriting C# ReadOnlyCollectionBase Nerelerde Kullanılıyor from a non-generic base class would be ineffecient. If the type was using a non-generic base, all it would be would be a thin layer above the base collection, where the generic features would simply derive from casting from the underlying object instances of the base collection.

1 Also, in the provided case, the best center of knowledge on whether the invoice dirilik 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"

In the class that exposes a read-only property based on PhvReadOnlyList, you still need an ordinary List, with its Add and Remove methods, so that your class gönül put items in the List both before and after creating a PhvReadOnlyList from it.