Hellosam.Net.Collections

A set of collections class with the focus of thread-safe and WPF.

NuGet is published at https://www.nuget.org/packages/hellosam.net.collections The binary is compiled for .Net 3.5 but can also be used for .Net 4.0, 4.5, 4.6 too.

Hellosam.Net.Collections.BinaryTree

Represents collection of key/value pairs (dictionary) implemented in binary tree.

Hellosam.Net.Collections.AVLTree

Represents collection of key/value pairs (dictionary) implemented in AVL tree. Insertion, removal, lookup operations are in O(log n)

Hellosam.Net.Collections.ObservableDictionary

Represents collection of key/value pairs (dictionary) implemented in AVL tree. This implements INotifyPropertyChanged and INotifyCollectionChanged hence it is observable by WPF items content controls.

Please noted that insertion and removal time complexity is subjected to framework Observer, which usually operates in O(n).

Hellosam.Net.Collections.ObservableDictionaryWithNotification

Same as Hellosam.Net.Collections.ObservableDictionary, plus providing "self-replace" Collection changed event when element property is updated. This is usable only with value type which implements INotifyPropertyChanged.

When bound to a CollectionView, this feature allows Grouping/Sorting to update.

Consider using DeferRequest() to consolidate & ThreadSafeObservableDictionaryWithNotification

Thread-safe verision of above. INotifyPropertyChanged and INotifyCollectionChanged are sent on another thread and hence does not block the writer.

Miscellaneous

Forks and Patches are welcome. Currently the tests file is incompleted. Use at your own risk. The ThreadSafe version is less battle tested.

Source Code and Publishing

Source code of this extension is available at https://github.com/sam0737/hellosam.net.collections

License And Copyright

This project is licensed in Artistic License 2.0

See http://www.perlfoundation.org/artistic_license_2_0