TCustomCheckCombo.Toggle procedure
Toggles the checked state for the check box at the specified position.
Declaration
procedure Toggle(AIndex: Integer)Arguments
AIndex | Ordinal position for the check box affected in the method. |
Description
Toggle is a method used to toggle the checked state for the
combo-box item at the position specified in
AIndex. Toggle sets
the value in the indexed
State property to the next
TCheckBoxState value for the entry in Items.
The value in the AllowGrayed property is used to determine the
next checked stated. When AllowGrayed is False, the value progresses
in the order cbUnchecked to cbChecked and repeats. When
AllowGrayed is True, the order is cbGrayed, cbUnchecked,
cbChecked and repeats.
Toggle is called from the KeyDown and DropDown methods
when the Return or Space key is pressed on the item in
ItemIndex and the item is Enabled. It is also called
from the Select method.
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.