DropDown Event
Occurs when the list portion of a ComboBox control is about to drop down after the drop-down arrow is clicked.
PROCEDURE ComboBox.DropDown
Remarks
Use a DropDown event procedure to make final updates to the list portion of a ComboBox before the user makes a selection. This enables you to add or remove items from the list using the AddItem or RemoveItem method. This flexibility is useful if you want controls to interact at run time. For example, what you want to appear in the list portion of a ComboBox depends on what the user chooses in an OptionGroup.
See Also
AddItem Method | DownClick Event | RemoveItem Method
Applies To: ComboBox