Method XbpListBox():addItem() Foundation
Adds an item to the list of the list box.
:addItem( <cItem> ) --> nItemPos
This method returns a numeric value identifying the position in the list where the item is found after the method terminates.
The :addItem() method is one of the most important methods of an XbpListBox object because it adds character strings to the list displayed by the object. Since :addItem() always adds character strings to the end of the list, the return value of this method is identical to the return value of :numItems().
If a character contains tab stop characters (Chr(9)), the string fragments separated by tab stops are aligned in columns. This way, an XbpListbox object can display data in multiple columns, although the :multiColumninstance variable is set to .F. (false). The tab stop positions can be defined with the :setTabstops(), so that individual column widths can be defined.
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