>That occured to me but after I had already completed the legwork for what I've accomplished so far. for an array, do I set the rowsource the same way?

In the Init of the Listbox, you can do the following:

This.AddProperty('aSource[1]')
This.RowSourceType = 5
This.RowSource = 'This.aSource'
select LMCA_NBR,&AFIELD,PR_NBR,noun from MOFFICE where &AFIELD= TRIM(MCALL) .AND. STATUS = 'OPEN' into array This.aSource

Now you can use functions like ADEL(), ASORT(), ASCAN() on this array as well as DIMENSION to make the array larger if you need to add elements.

Also, make sure you set your ColumnCount and ColumnWidths properties