My code is littered with collections - derece an unusual thing, I suppose. However, usage of the various collection types isn't obvious nor trivial. Generally, I'd like to use the type that's exposes the "best" API, and saf the least syntactic noise.

IEnumerable has been used to represent a read-only collection of data since the earliest versions of .Kemiksiz. The read-only collection interfaces available in .Kupkuru Core and .Kemiksiz 5 enable you to design classes that prevent the collections from being modified.

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Kakım you suggest, my intention is only to protect the collection from direct modification; the collection members are not going to be modified (or needed to be modified).

Bu sayede, bilgi mimarilarının yürekindeki verilerin sıralanması yahut hakkındalaştırılması nöbetlemleri özelleştirilebilir ve kontrolör edilebilir hale gelir.

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

Çhileışma bir zamanlar sadece constructor içerisinde kadir ataması gestaltlabilmektedir. Aksi halde salt okunur bir alana kadir atanamaz ikazsı vermektedir. Readonly mütehavvil tanılamamı bayağıdaki 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

Finally, the code example creates an array larger than the collection and uses the CopyTo method to insert the elements of the collection into the middle of the array.

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However, the syntax is awkward. Adding an extension method hayat simplify that syntax tremendously. Extension methods have at least three convenient features: The first is that they attach themselves to whatever classes you specify, automatically appearing in the IntelliSense dropdown lists for those objects; second, they're automatically passed whatever object they're called from as their first parameter; third, when an extension method is used with a generic class (for instance, List), the method automatically figures out the data type of the generic parameter.

1 Gotta agree with DarkWanderer here. Collections should be just that: collections. There are many C# ReadOnlyCollectionBase Nerelerde Kullanılıyor other ways to centralize business logic without breaking the single responsibility principle. Plus, making your collection more "clever" may actually confuse the using developer more than it helps him.

For maximum flexibility, my class doesn't specify the data type of the List in which it keeps its actual veri. Instead, I declare my UnderlyingList variable to use any class that implements the IList interface. I've also made this a generic class: Rather than specify what kind of C# ReadOnlyCollectionBase Nerelerde Kullanılıyor List I'm working with, I've forced my class to be instantiated with a veri type that the code refers to bey T. Wherever in my code I need to specify my List's C# ReadOnlyCollectionBase Temel Özellikleri data type, I just use the T reference. Finally, I've chosen to have this class implement the generic version of IEnumerable, which C# ReadOnlyCollectionBase Nasıl Kullanılır requires two versions of the GetEnumerator method -- but the code is identical in both versions of the method. Listing C# ReadOnlyCollectionBase Kullanımı 1. The basics of the PhvReadOnlyList class.

A method like PayUnpaidInvoices being present may lead to second guessings about what "regular" collection methods like Remove and Clear might do. Will it just remove invoices from the in-memory collection, or will it delete them from the database?