Açıklaması C# ReadOnlyCollectionBase Temel Özellikleri Hakkında 5 Basit Tablolar

Açıklaması C# ReadOnlyCollectionBase Temel Özellikleri Hakkında 5 Basit Tablolar

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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 kişi use the List GetEnumerator method to retrieve an Enumerator object, which you birey then return to the yetişek using your class. Listing 1 has the basics of this class (I've called it PhvReadOnlyList).

-SortedDictionary: Bu derme HashTable ve SortedList sınıflarının yoğurulmasıyla oluşmuş bir sınıftır. Aralarında çok enikonu farklar vardır. SortedList’ten henüz bir küme bellek kullanır.

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

As 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, done konstrüksiyonlarının bâtınindeki verilerin sıralanması yahut huzurlaştırılması hizmetlemleri özelleştirilebilir ve arama edilebilir hale gelir.

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

Matthew WatsonMatthew Watson 108k1111 gold badges170170 silver badges290290 bronze badges 2 2 To avoid that a client gets a writable object by downcasting, WritableMyItem (and IWritableMyItem if used) could be made private or internal.

In my example I exposed it all, C# ReadOnlyCollectionBase Temel Özellikleri but you don't have to do this. You kişi make it read-only if you want, or validate additions to the list, prior to adding them.

Yaşama you arrange 25 whole C# ReadOnlyCollectionBase Nerelerde Kullanılıyor 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

So when i have this piece of code what is the easiest C# ReadOnlyCollectionBase Nasıl Kullanılır or best way to make it a read only collection?

ICollection seems like ICollection, but it’s actually a very different abstraction. We found that ICollection was derece very useful. At C# ReadOnlyCollectionBase Nerelerde Kullanılıyor the same time, we did hamiş have an abstraction that represented an read/write non-indexed collection.

Enumerating through a collection is intrinsically derece a thread-safe procedure. Even when a collection is synchronized, other threads güç still modify the collection, which causes the enumerator to throw an exception.

End Sub And that's all you need to write. The class that's using your new read-only collection would be identical to the class that used my custom PhvReadOnlyList. In fact, if C# ReadOnlyCollectionBase Temel Özellikleri that's all you want, then you don't even need to create your own version of the ReadOnlyCollectionBase class -- the .

SkipWhile(IEnumerable, Func) Bypasses elements in a sequence bey long birli a specified condition is true and then returns the remaining elements. The element's index is used in the logic of the predicate function.