Add item to the selection. In mru mode the item moves to the front and re-adding an existing item refreshes its recency; otherwise it is appended to the end. Overflow past max evicts the oldest. No-op in append mode if already present. Respects mode (single replaces, disabled is a no-op).

canSelect

virtual Bool canSelect(Item item)

Is this item eligible to be selected. Advisory for UI enablement; does not gate add. Anything selected can always be removed, so there is no corresponding removal predicate.

clear

Void clear()

Clear the selection

contains

Bool contains(Item item)

Is the given item currently selected (keyed by id)

data

Obj? : data

Get or set single selection by Item.data

dataList

Obj[] : dataList

Get or set multiple selection by Item.data

enabled

Bool enabled(SelectMode mode)

Return if selection should be enabled for given select mode

Obj? : id

Get or set single selection by Item.id

ids

Ref[] : ids

Get or set multiple selection by Item.id

isEmpty

Bool isEmpty()

Is the current selection empty

item

Item? : item

Get or set single selection by Item

items

Item[] : items

Get or set multiple selection by Item

max

Int : max

Max entries to retain, or zero for unlimited. Overflow evicts the oldest.

mru

Bool : mru

Most-recently-used ordering: add pushes to the front and re-adding an existing item refreshes its recency. Default appends to the end.

one

Bool one()

Return if size is one

oneOrMore

Bool oneOrMore()

Return if size is one or more

remove

Void remove(Item item)

Remove item from the selection by id (no-op if not present)

size

Int size()

Return number of selected items

toggle

Void toggle(Item item)

Toggle item in the selection

Haxall 4.0.7 ∙ 27-Oct-2026 09:10 EDT