Detaylar, Kurgu ve C# ReadOnlyCollectionBase Nedir

Detaylar, Kurgu ve C# ReadOnlyCollectionBase Nedir

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I'm going to start by being perverse and pretending that the ReadOnlyCollectionBase class doesn't exist. If that were true and you wanted to create a read-only collection, you'd create a class that only returned an Enumerator object. A class that just implements IEnumerable is, according to my definitions, a read-only collection class. Generating that GetEnumerator object from your class isn't difficult if you keep your class veri in a class that itself implements IEnumerable -- a List, for instance. If you do keep your veri in a List, then you güç use the List GetEnumerator method to retrieve an Enumerator object, which you yaşama then return to the program using your class. Listing 1 has the basics of this class (I've called it PhvReadOnlyList).

Will feeblemind affect the original creature's body when it was cast on it while it was polymorphed and reverted to its original form afterwards?

foreach C# dilinin deyimi (for eachVisual Basic'te) numaralandırıcıların muhtelitşıklığını gizler. Bu nedenle, numaralandırıcıyı doğrudan nüfuz etmek adına kullanılması foreach önerilir.

List's are a very common datastructure, but creating them in this fashion involves quite a bit of syntactic noise - and it güç easily get even worse (e.g.

Imagine we have existing benzer with Organization => Employees already seki up. To apply this technique, we need to change Organization benzer a bit:

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.

If you're tolerant of some "noise" in your own encapsulated code then I would suggest wrapping a T[] array and exposing an IList which happens to be a ReadOnlyCollection:

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

Yaşama you arrange 25 whole numbers (derece necessarily all different) so that the sum of any three successive terms is even but the sum of all 25 is odd? more hot questions

Başarım Optimizasyonu: C# ReadOnlyCollectionBase Temel Özellikleri IList, done erişimini optimize ederek uygulamanın başarımını pozitifrabilir ve yeti yönetimini iyileştirebilir.

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For maximum flexibility, my C# ReadOnlyCollectionBase Kullanımı class doesn't specify the veri type of the List in which it keeps its actual data. 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 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 veri type, I just use the T reference. Finally, I've chosen to C# ReadOnlyCollectionBase Kullanımı have this class implement the generic version of IEnumerable, which requires two versions of the GetEnumerator method -- but the code is identical in both versions of the method. Listing 1. The basics of the PhvReadOnlyList class.

DefaultIfEmpty(IEnumerable, TSource) Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.