column.readOnly is demo'd here: http://foxincloud.com/tutotest/dataUpdate.tuto

(1) column1 (ID) is set statically to .ReadOnly:

MODIFY FORM "aw\samples\fic\fictuto\progs\forms\dataupdate.scx" method grd.Init
...
.ReadOnly = m.iGrc = 1

(2) column6 (contact) is set dynamically to .ReadOnly:

modify class fictxtgrc OF "aw\samples\fic\classe\ficsample.vcx" method refresh_
...
this.Parent.ReadOnly = thisForm.sourceType() == 'Table'

if you select 'table' as grid.recordSource, you can no longer enter into the column for edition.

-- thn (FoxInCloud)

I will check that readonly is in the wcpropsave

MODIFY FORM "aw\samples\fic\fictuto\progs\forms\dataupdate.scx" method grd.Init
...
.ReadOnly = m.iGrc = 1

modify class fictxtgrc OF "aw\samples\fic\classe\ficsample.vcx" method refresh_
...
this.Parent.ReadOnly = thisForm.sourceType() == 'Table'

So far I can only reproduce the issue in IE 10. IE 9 and 11 are fine, as is FF. I will look into it further and see what I can fine.

I hope we won't get one!

-- thn (FoxInCloud)