C# ReadOnlyCollectionBase Nerelerde Kullanılıyor - Genel Bakış

C# ReadOnlyCollectionBase Nerelerde Kullanılıyor - Genel Bakış

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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.

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

GitHub'da bizimle ortaklık gestaltn Bu hapishaneğin kaynağı GitHub'da bulunabilir; burada üste problemlerı ve çekme isteklerini oluşturup gözden geçirebilirsiniz. Henüz ziyade vukuf muhtevain yardımda mevcut kılavuzumuzu inceleyin.

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.

Creating an extension method is sufficiently different in C# that it's worth taking the time to do the translation. A C# extension method is a static method declared in a static class, and its first parameter must be declared using the "this" keyword. So the C# version of this method looks like this: public static class PhvExtensionMethods

You sevimli expose private collection properties to EF, allowing for mapping and querying, while still keeping your domain object's members and relationships properly encapsulated. It's a bit messy, but it works:

Use ObservableCollection/ListViewCollection and make your own custom ReadOnlyObservableCollection C# ReadOnlyCollectionBase Nasıl Kullanılır wrapper like in #1 that doesn't implement Add or modifying properties and methods.

After hopefully understanding your C# ReadOnlyCollectionBase Nedir question, i think you have to distinguish between what you create and manage within your class and what you make available to the outside world.

To guarantee thread safety during enumeration, you gönül lock the collection during the entire enumeration. To C# ReadOnlyCollectionBase Kullanımı allow the collection to be accessed by multiple threads for reading and writing, you must implement your own synchronization.

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

One possibility is to implement your own thread-safe variant of the ReadOnlyCollection to allow locked access, though this will be non-trivial and non-performant if you want to support IEnumerable, and it still

SingleOrDefault(IEnumerable, Func) Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition.

You kişi loop over the ReadOnlyCollection using the foreach-loop. A for-loop is also possible with the Count C# ReadOnlyCollectionBase Nedir property and indexer. CopyTo provides a way to copy the elements to an array. You must allocate the array yourself.

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