UnsupportedFormatException Exception
Occurs when you use a String expression that cannot be evaluated.
Notes
REALbasic allows you to use a string expression to set the column widths via the ListColumn class or the ColumnWidths property of the ListBox. You can use the percent sign or the "*" symbol, as described in those sections. If you use a character that is not permitted, an UnsupportedFormatException will occur.
Example
The following specification causes an UnsupportedFormatException runtime error:
ListBox1.ColumnWidths="50,50i"
See Also
ListBox, ListColumn, RuntimeException classes; Exception, Try blocks.