Specifies whether the current selection is erased, once the user clicks outside of the items section.
Type
Description
Boolean
A Boolean expression that specifies whether the current selection is erased, once the user clicks outside of the items section.
By default, the AllowSelectNothing property is False. The AllowSelectNothing property specifies whether the current selection is erased, once the user clicks outside of the items section. The
UnselectAll method unselects the currently selected item when both the
AllowSelectNothing and SingleSel
properties are set to True. For instance, if the control's
SingleSel property is True, and AllowSelectNothing property is True, you can un-select the single-selected item if pressing the CTRL + Space, or by CTRL + click.
