>How come I always get wierd problems?
>
>Ok, on a form I've created a complex custom "grid" in an app under VFP5. If a toggle is set on in a line on the grid, upon activation of the line the following code is executed (part of an EnableRow method):
>
>TVar = "thisform.DescLine.ControlSource = S["+alltrim(str(CurrRow))+",18]"
>&TVar
>TVar = "thisform.InfoLine.ControlSource = S[" + alltrim(str(CurrRow))+",20]"
>&TVar
>
>The first one works just fine; the second blows up on the second &TVar line (consistently) with:
>"The DataSource for this object must be a variable reference".
>
>In this particular case (doesn't matter though) CurrRow = 1 and TVar is equal to the expected
>
>"thisform.InfoLine.ControlSource = S[1,20]"
>
>according to the debugger. Of course, S[1,20] is defined and equal to a short character string. To me this makes no sense because the first example works just fine. Any thoughts on what the heck VFP is doing?

What does S[1,18] equal?