>>-aListBox~DeSelectIndex(--+-------+--)-----------------------><
+-index-+
The DeSelectIndex method deselects the list entry at the specified position for multiple selection listboxes. The currently selected list item is highlighted and surrounded by a dotted border.
The only argument is:
The index (starting with 1) of the list item to be deselected. If you specify no index or 0 for this argument, all items are deselected.
-1 if an error occurred.