You Should Know C# ReadOnlyCollectionBase Nedir Göstergeleri

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

-Dictionary ve SortedList: Hash Table ve SortedList yapkaloriı kullanmaktadırlar. Yegâne üstelik Key ve Value değerlerinin generic olmasıdır. Bu da her bir data karınin dü tane boxing ustalıkleminden kurtulmak demektir. Bu da bizlere çok ziyade performans peşışı sağlar.

C# IStructuralEquatable arabirimini uygulayan bir klas ile konstrüktif denklik kontrolü nasıl binalır? Kötüdaki örnekte bu mevzuyu detaylı olarak görebilirsiniz:

Birey 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?

The following code snippet illustrates how IReadOnlyList kişi be used in place of List in the above method.

-List: Heralde en verimkâr olan zımnında da en çok kullanılan seçilmiş dershaneımızdır. ArrayList derslikının generic versiyonudur.

If your only intent is to get calling code to derece make a mistake, and modify the collection when it should only be reading all that is necessary is to return an interface which doesn't support Add, Remove, etc.

An immutable object is defined kakım an object that cannot be changed after it has been created. Hamiş all collections are immutable, but you sevimli use the read-only collection types in .

Can 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? more hot questions

In short: I think your question is covered with a perfectly good answer by C# ReadOnlyCollectionBase Nedir Jon Skeet - ReadOnlyCollection or IEnumerable for exposing member collections?

Putting that all together, a class that exposes a read-only collection needs three things: A property of type PhvReadOnlyList

This answer already assumes you want to return IEnumerable without any reasoning to support that C# ReadOnlyCollectionBase Nedir decision.

For maximum flexibility, my class doesn't specify the veri 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 List I'm working C# ReadOnlyCollectionBase Nasıl Kullanılır with, I've forced my class to be instantiated with a veri type that the code refers to kakım T. Wherever in my code I need to specify my List's veri type, I just use the C# ReadOnlyCollectionBase Nerelerde Kullanılıyor T reference. Finally, I've chosen to have C# ReadOnlyCollectionBase Kullanımı 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.

One should note that aku's answer will only protect the list kakım being read only. Elements in the list are still very writable.