allowsEmptySelection
A Boolean that indicates whether a radio-mode matrix supports an empty selection.
Declaration
var allowsEmptySelection: Bool { get set }Discussion
When the value of this property is true, the matrix allows one or zero cells to be selected. When the value of this property is true, the matrix allows one and only one cell (not zero cells) to be selected. This setting has effect only in the NSRadioModeMatrix selection mode.