View Source

Class OrderedHashSet<T>

A custom collection similar to HashSet{T} which only contains unique items, however this collection keeps items in order and is customizable to keep the newest or oldest equatable item

Inheritance

object

Collection<T>

KeyedCollection<T, T>

Namespace: Umbraco.Cms.Core.Collections

Assembly: Umbraco.Core.dll

Syntax

public class OrderedHashSet<T> : KeyedCollection<T, T> where T : notnull

Type Parameters

Name	Description
T

Constructors

View Source

OrderedHashSet(bool)

Initializes a new instance of the OrderedHashSet<T> class.

Declaration

public OrderedHashSet(bool keepOldest = true)

Parameters

Type	Name	Description
bool	keepOldest	When `true`, the oldest item is kept when a duplicate is added; when `false`, the newest item replaces the oldest.

Methods

View Source

GetKeyForItem(T)

Declaration

protected override T GetKeyForItem(T item)

Parameters

Type	Name	Description
T	item

Returns

Type	Description
T

View Source

InsertItem(int, T)

Declaration

protected override void InsertItem(int index, T item)

Parameters

Type	Name	Description
int	index
T	item