Object Reference > TDBDropDown Events > DropDownOpen Event |
The DropDownOpen event is triggered when a TDBDropDown control is opened.
TDBDropDown_DropDownOpen ( )
Arguments
None
The DropDownOpen event is triggered when a TDBDropDown control is opened, which occurs when:
The user clicks the current cell's built-in button.
The user presses Alt+Down Arrow.
The built-in button is enabled for a column when its DropDown property is set to the name of a valid TDBDropDown control.