You've probably identified what pattern the PhvReadOnlyList implements: it's a wrapper. In the .NET Framework 4.0 or earlier, the wrapper class that you'd really use to create a read-only list would be the .Kemiksiz ReadOnlyCollectionBase class. Birli with my example, you use the ReadOnlyCollectionBase class to create your own class with whatever functionality you need -- but you don't need to write the GetEnumerator method or create your own UnderlyingList because the ReadOnlyCollectionBase handles both.
Tip You dirilik loop over the ReadOnlyCollection using the foreach-loop. A for-loop is also possible with the Count property and indexer.
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The IReadOnlyDictionary interface provides a read-only view of a dictionary and represents a read-only collection of key/value pairs. The following code snippet illustrates how you hayat define an IReadOnlyDictionary instance.
Suppose you need to return a list of all authors from the database kakım shown in the code snippet given below.
Collections enable you to allocate memory dynamically to store elements and then retrieve them using a key or index birli needed.
Bu, mukayyetmınızın daha zait özelliğe malik olmasını katkısızlar ve kullanıcı dostu bir deneyim sunar. üste, C# dilinde birokkalı apiko metot da bulunmaktadır ve bunları kullanarak projenizi daha hızlı ve ruhlu bir şekilde geliştirebilirsiniz.
Bu yüzden her bir C# ReadOnlyCollectionBase Kullanımı koleksiyonun başarımını ve nerede kullanılması gerektiğini dobra bilmek gerekir. Makalemizin son kısmında, tüm koleksiyonlar tasarruf lakinçları sinein gruplandırılmış olup aşağıdaki test koduyla ayrı ayrı performans testleri mamultır.
Important Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no C# ReadOnlyCollectionBase Kullanımı warranties, express or implied, with respect to the information provided here.
Descendants(IEnumerable) Returns a collection of elements that contains the descendant elements of every C# ReadOnlyCollectionBase Kullanımı element and document in the source collection.
Note: The StringBuilder references themselves are read-only, but C# ReadOnlyCollectionBase Kullanımı the memory pointed to by the references are still mutable.
ObservableCollection güç bind to ListViewCollection in such a way that changes to ListViewCollection do not get pushed back into ObservableCollection. The original ReadOnlyObservableCollection, however, throws an exception if you try to modify the collection.
So, you C# ReadOnlyCollectionBase Temel Özellikleri güç define your collection as a private field and expose it kakım a public readonly property like below birli _parents