how to read back the selected row in a multicolum list box?

[a9449r]

i need to simply read back the selected value from a multicolumn listbox.  assuming the listbox is defaulted to no selection, i need to distinguish between no value selected and any other value selected.

[smercurio_fc]

The actual terminal will give you the selected row. A -1 indicates no row selected. This assumes you are using a selection mode of "0 or 1 Items". If you use "0 or More Items" or "1 or More Items", then the terminal's datatype is an array, indicating the selected rows.

[a9449r]

Thanks