I'm working on an application written in VFP 5.0 and have a grid on a form which I create at runtime. I need to change the controlsource to checkbox instead of textbox (see code below)

THISFORM.grid1.ADDCOLUMN(2)
THISFORM.grid1.COLUMNS(2).NAME = 'colBox'
THISFORM.GRID1.colBox.WIDTH = 30
THISFORM.grid1.colBox.HEADER1.CAPTION = ''
THISFORM.grid1.colBox.HEADER1.ALIGNMENT = 2
THISFORM.grid1.colBox.currentcontrol = 'Check1'

My code errors out on the last line. What am I doing wrong?

Thanks,

Joe