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' The example updates a combo box based on the user's selection in an option
' button group.
 
' To try this example:
' 1. Choose New Project from the File menu
' 2. Choose New Form from the File menu to create a form with:
'    • Combo box
'    • Two option buttons
' 3. Set the CtlName property for both option buttons to "OptionGroup"
' 4. Press Alt+F4 to return to the programming environment
' 5. Copy the code example below to the form module
' 6. Press F5 to run the example
 
 SUB Combo1_DropDown ()
     WHILE Combo1.ListCount             ' Delete existing items
          Combo1.REMOVEITEM 0
     WEND
     IF OptionGroup(0).Value = -1 THEN
          Combo1.ADDITEM "Gray Goose Express", 0
          Combo1.ADDITEM "Wild Fargo Carriers", 1
      ELSE
          Combo1.ADDITEM "Pegasus Overnight"
      END IF
 END SUB