I am experencing the following problem on a VFP 5 project. When the checkbox is added to the grid it behaves as if it is "readonly". Without the checkbox the column is writeable. I have tried many different sequences of property settings without achieving a solution. Any ideas?
TYIA,
Robert Baker

select .f. as lbill,fldb from table into cursor cur1
USE DBF("cur1") IN 0 AGAIN ALIAS cur2
with thisformset.frmA.grdA
.recordsource = 'cur2'
.readonly = .f.
.columncount = 2
.Column1.controlsource = 'Cur2.lbill'
.Column1.readonly = .f.
.Column1.AddObject('zcb','checkbox')
.Column1.zcb.caption = ''
.Column1.sparse = .f.
.Column1.CurrentControl = 'zcb'
.Column1.header1.alignment = 2
.Column1.header1.caption = 'Bill'
.Column1.header1.FontBold = .t.
.Column1.width = 32

.Column2.controlsource = 'Cur2.fldb'
.Column2.header1.alignment = 2
.Column2.header1.caption = 'ID'
.Column2.header1.FontBold = .t.
.Column2.readonly = .t.
.Column2.width = 50
endwith