Greatest Kılavuzu C# ReadOnlyCollectionBase Temel Özellikleri için

Greatest Kılavuzu C# ReadOnlyCollectionBase Temel Özellikleri için

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With this type from System.Collections.ObjectModel, we provide a collection of elements that cannot be changed. But it may be possible to change some elements themselves.

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Example. In this program, a list of ints is created, and then the ReadOnlyCollection constructor is used with that List bey an argument. Inside the ReadOnlyCollection constructor, a reference to the argument is stored bey an IList reference field.

Sum(IEnumerable, Func) Computes the sum of the sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.

Summary. The ReadOnlyCollection functions bey a wrapper for any collection that implements IList. It adds a level of indirection that reduces possible changes.

Note The StringBuilder references themselves are read-only, but the memory pointed to by the references are still mutable.

Hangi klas nerde kullanılmalı, bu sınıfların farklılıkları neler, performansları nasıl üzere bazı soruları bu makalede yan yana arayalım.

GitHub'da bizimle işbirliği strüktürn Bu yürekğin kaynağı GitHub'da bulunabilir; burada hassaten sorunları ve çekme isteklerini oluşturup gözden geçirebilirsiniz. Daha okkalı bilgi kucakin ulamada kâin kılavuzumuzu inceleyin.

Exposing the array directly to those using C# ReadOnlyCollectionBase Nasıl Kullanılır it means that they emanet modify it - this is a violation of encapsulation and veri hiding.

Sometimes you may want to use an interface, perhaps because you want to mock the collection during unit testing. Please see my blog entry for adding your own interface to ReadonlyCollection by using an adapter.

C# metotları, kodun elan düzenleme olmasını sağlar, henüz kısa ve daha okunabilir bir şekilde makalelmasına yardımcı evet ve projenize daha okkalı çalışmalevsellik kazanmıştırrır.

First, some definitions: A read-only collection is like a List in that it supports C# ReadOnlyCollectionBase Nedir iterating through the items with a For…Each loop or retrieving an item in the collection by position.

For maximum flexibility, my class doesn't specify the veri type of the List in which it keeps its C# ReadOnlyCollectionBase Kullanımı 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 C# ReadOnlyCollectionBase Kullanımı specify what kind of List I'm working with, I've forced my class to be instantiated with a data type that the code refers to as T. C# ReadOnlyCollectionBase Nedir Wherever in my code I need to specify my List's data type, I just use the T reference. Finally, I've chosen to 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.

Chances are, you'll never notice this difference, but if this is a hot-peşin in your code and requires every last bit of performance you hayat squeeze out of it, why not use an Array instead? That would be faster still.