This helps you keep related items together so your files (pictures, documents, screenshot, applications, etc.) are organized and easy to find. When considering immutability, the following corresponding immutable types follow similar sorting semantics: ImmutableSortedSet and ImmutableSortedDictionary. iCollections lets you create areas on your desktop so you can sort and arrange your icons. Uses more memory than the SortedList nongeneric class and the SortedList generic class.įor sorted lists or dictionaries that must be accessible concurrently from multiple threads, you can add sorting logic to a class that derives from ConcurrentDictionary. Uses less memory than a SortedDictionary. (This assumes that a resize is not required.) Instead, the ICollection refers back to the values in the original ListDictionary. The returned ICollection is not a static copy. Insertion and removal are generally O( n) however, insertion is O(log n) for data that are already in sort order, so that each element is added to the end of the list. The order of the values in the ICollection is unspecified, but it is the same order as the associated keys in the ICollection returned by the Keys method. The first phase of this programme was to undertake a series of pilot projects to develop the workflows and infrastructure needed to support mass digitisation of very large scientific collections. The properties that return keys and values are indexed, allowing efficient indexed retrieval. SortedList nongeneric class and SortedList generic class The following table lists some of the differences between the two sorted list classes and the SortedDictionary class. The nongeneric SortedList class returns DictionaryEntry objects when enumerated, although the two generic types return KeyValuePair objects.Įlements are sorted according to a implementation (for nongeneric SortedList) or a implementation (for the two generic classes).Įach class provides properties that return collections containing only the keys or only the values.
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