Thank you Terry, but Nadya Nosonovsky helped me solving my problem.
It had someting to do with the inexistence of table prefix on the column's controlsource.

On the init of the formset i defined the controlsource of every column like this:

thisformset.form1.ct2.grid1.RecordSource = thisformset.cur_facturas
thisformset.form1.ct2.grid1.artIGO.ControlSource = "artigo"
thisformset.form1.ct2.grid1.qtd.ControlSource = "qtd"
thisformset.form1.ct2.grid1.um.ControlSource = "um"
thisformset.form1.ct2.grid1.preco.ControlSource = "preco"
thisformset.form1.ct2.grid1.valor.ControlSource = "valor"
thisformset.form1.ct2.grid1.valor_iva.ControlSource = "valor_iva"
thisformset.form1.ct2.grid1.iva.ControlSource = "iva"

But if i put the table name as prefix of the control source, like this:

thisformset.form1.ct2.grid1.RecordSource = thisformset.cur_facturas
thisformset.form1.ct2.grid1.artIGO.ControlSource = thisformset.cur_facturas + ".artigo"
thisformset.form1.ct2.grid1.qtd.ControlSource = thisformset.cur_facturas + ".qtd"
thisformset.form1.ct2.grid1.um.ControlSource = thisformset.cur_facturas + ".um"
thisformset.form1.ct2.grid1.preco.ControlSource = thisformset.cur_facturas + ".preco"
thisformset.form1.ct2.grid1.valor.ControlSource = thisformset.cur_facturas + ".valor"
thisformset.form1.ct2.grid1.valor_iva.ControlSource = thisformset.cur_facturas + ".valor_iva"
thisformset.form1.ct2.grid1.iva.ControlSource = thisformset.cur_facturas + ".iva"

(thisformset.cur_facturas hold the name of the table)

My problem was solved.

Thank you,
Joaquim


>There's nothing on code to do that, something happened that simply changed the readonly status to TRUE. it seems to happen on the WHEN method, so i went to this method and manualy set the value of readonly to FALSE, simply doing this 'this.readonly = .f.', but it didn't work, this property keeps its value of TRUE.
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>Do you have calls in the WHEN event? Are there methods in the VALID events of the column textboxes?