I am attempting to refresh a button based of a text box having value in it. If it has a value, then I want the button to enabled. and the reverse to happen as well. the text box is displaying information from a list box and refreshes everytime the user scroll through the list box...can any assit

here is sample code:

IF EMPTY(ThisForm.M101AReq.value) OR ThisForm.M101AReq.value = 0
ThisForm.Btn_M101a2.Enabled = .f.
ELSE
ThisForm.Btn_M101a2.Enabled = .T.
ENDIF