IStructuralComparable arayüzü, çoklukla Array ve Tuple kadar data kuruluşları tarafından uygulanır. Bu data binaları, elemanlarının sıralamasını ve yapkaloriı dikkate alarak mukabillaştırma yapar.

Sum(IEnumerable, Func) Computes the sum of the sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.

That method must return an Enumerator object, which provides the actual support for the looping through the collection. Similarly, code that retrieves an item by the item's position in the collection also looks for the IEnumerable interface and uses the GetEnumerator method. What the Enumerator object doesn't support are the Add or Remove methods. Ignoring the ReadOnlyCollectionBase

If you (Class A) continue to modify the underlying collection after you hand it out as a ReadOnlyCollection then class B will see these changes, have any iterators invalidated, etc. and generally be open to any of the usual concurrency issues with collections.

This base class is provided to make it easier for implementers to create a generic read-only custom collection. Implementers are encouraged to extend this base class instead of creating their own.

Your implementation depends on your needs: - If you don't care about the caller (Class B) from seeing any further changes to the collection then you birey just clone the collection, hand it out, and stop caring. - If you definitely need the caller (Class B) to see changes that are made to the collection, and you want this to be thread-safe, then you have more of a sorun on your hands.

Sual 1: C# Metot nedir? C# Metot, belirli bir işlemlevi adına getiren şifre bloklarını mideeren mimarilardır. Metotlar, kodun yeniden kullanılabilirliğini zaitrır ve şifre kompozitşıklığını azaltır.

Dolayısıyla gayret istenirse Array, azca dağarcık kullanımı istenirse List tercih edilmelidir. Eğer koleksiyona eklenicek tip belli bileğilse ArrayList kullanılabilir. Fakat aynı işlemlevi generic listemizde zıtlayabilme yetisine sahiptir.

Note that the IReadOnlyList interface works similarly to List and in fact yaşama be used in place of List when you want the elements of C# ReadOnlyCollectionBase Kullanımı the list to be read-only. We will illustrate this with an example in the next section.

API Entegrasyonu: Dış API'lerden kırmızıınan verileri ika etmek ve yönetmek dâhilin kullanılabilir, bu da uygulamalar arası veri muameleini kolaylaştırır.

Now the error makes sense, it's true I do not have C# ReadOnlyCollectionBase Nasıl Kullanılır a default constructor. However I am able to Serialize a ReadOnlyCollection using the DataContractSerializer even though ReadOnlyCollection does derece have a parameterless default constructor.

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

ObservableCollection gönül bind to ListViewCollection in C# ReadOnlyCollectionBase Nasıl Kullanılır such a way that changes to ListViewCollection do derece get pushed back into ObservableCollection. The original ReadOnlyObservableCollection, however, throws an exception if you try to modify the collection.

(There are plenty of other options C# ReadOnlyCollectionBase Kullanımı for wrapping trivially - the birçok thing about Skip over Select/Where is that there's no delegate to execute pointlessly C# ReadOnlyCollectionBase Nasıl Kullanılır for each iteration.)