My code is littered with collections - derece an unusual thing, I suppose. However, usage of the various collection types isn't obvious nor trivial. Generally, I'd like to use the type that's exposes the "best" API, and özgü the least syntactic noise.
Is there any reason to expose an internal collection birli a ReadOnlyCollection rather than an IEnumerable if the calling code only iterates over the collection?
Average(IEnumerable, Func) Computes the average of a sequence of Single values that are obtained by invoking a transform function on each element of the input sequence.
Descendants(IEnumerable, XName) Returns a filtered collection of elements that contains the descendant elements of every element and document in the source collection. Only elements that have a matching XName are included in the collection.
Sum(IEnumerable, Func) Computes the sum of the sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.
Average(IEnumerable, Func) Computes the average of a sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.
On the other hand, if you're exposing a read-only view of a mutable collection, then this advice is still C# ReadOnlyCollectionBase Temel Özellikleri valid, although I would probably expose it bey IReadOnlyCollection (which didn't exist when I wrote this).
Collaborate with us on GitHub The source for this content emanet be found on GitHub, where you yaşama also create and review issues and pull requests. For more information, see our contributor guide.
Sum(IEnumerable, Func) Computes the sum of the sequence of nullable Double values that are obtained by invoking a C# ReadOnlyCollectionBase Nedir transform function on each element of the input sequence.
Movie about a planet where seeds must be harvested just right in order to liberate a valuable crystal within
ICollection seems like ICollection, but it’s actually a very different abstraction. We found that ICollection was derece very useful. At the same time, we did C# ReadOnlyCollectionBase Kullanımı not have an abstraction that represented an read/write non-indexed collection.
However, a read-only collection doesn't provide Add and Remove methods for changing C# ReadOnlyCollectionBase Nerelerde Kullanılıyor which items are in the collection, though the items themselves may be updateable (it's the responsibility of the items in the collection to protect themselves from changes).
This base class is provided to make it easier for implementers to create a strongly typed read-only custom collection.
Upgrade C# ReadOnlyCollectionBase Nerelerde Kullanılıyor to Microsoft Edge to take advantage of the latest features, security updates, and technical support.