Detaylar, Kurgu ve C# ReadOnlyCollectionBase Nerelerde Kullanılıyor

Detaylar, Kurgu ve C# ReadOnlyCollectionBase Nerelerde Kullanılıyor

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You kişi 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!).

Is there any reason to expose an internal collection birli a ReadOnlyCollection rather than an IEnumerable if the calling code only iterates over the collection?

Marc GravellMarc Gravell 1.0m271271 gold badges2.6k2.6k silver badges2.9k2.9k bronze badges 3 1 I would second here on using the readonly keyword for the variable birli well. Without this, anyone might fall into an impression that since the collection is of type ReadOnlyCollection so I'm completely safe from any possibility of changes being done to my collection when it is not the case.

This hides Add and Remove methods, but does not protect at all. Because I güç always cast to ICollection and call prohibited method.

Well, there is a way. It ain't pretty as it adds extra stuff on your domain biçim, but I just checked and it works.

Kakım I see it IEnumerable is a subset of the interface of ReadOnlyCollection and it does hamiş allow the user to modify the collection. So if the IEnumberable interface is enough then that is the one to use. Is that a proper way of reasoning about it or am I missing something?

What's the best way to pass around lists of values without lots of code clutter (such kakım explicit type parameters) but that still communicates intent clearly?

Average(IEnumerable, Func) Computes the average of a sequence of nullable Int32 values that are obtained by invoking a transform function on each element of the input sequence.

This article discusses these read-only immutable collection types in .Kupkuru Core and how you dirilik work with them in C#.

Fevkdaki adımları kovuşturulma ederek, C# C# ReadOnlyCollectionBase Nerelerde Kullanılıyor dilinde Queue derslikını keskin bir şekilde kullanabilirsiniz. Queue derslikı, data örgülarını yönetmek ve iş sıralarını organize etmek midein nispeten kullanışlıdır.

Public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are derece guaranteed to be thread safe.

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On the other hand, let's say you have a ReadOnlyCollection(StringBuilder). This is kind of a strange thing to have, but it is acceptable. C# ReadOnlyCollectionBase Kullanımı You dirilik still change the individual StringBuilder objects by accessing their methods.

SkipWhile(IEnumerable, Func) Bypasses elements in a sequence C# ReadOnlyCollectionBase Temel Özellikleri kakım long as a specified condition is true and then returns the remaining elements. The element's index is C# ReadOnlyCollectionBase Nasıl Kullanılır used in the logic of the predicate function.