I'm guessing that you mean in LabVIEW since an older post of yours mentions using it. If that's the case, you can use the Index Values property of a table. You get the size of the table with the Array Size function, get the number of rows with the Index Array, subtract the number of rows that are visible in the table, and write that value to the row element of the Index Vals cluster. The row set is the cell displayed in the upper left corner of the table.
p.s. In the future, post questions like this in the LabVIEW forum since it does not pertain to DAQ.
Message Edited by Dennis Knutson on 11-14-2005 12:45 PM