>Fabio,
>
>I hope u know also the solution for an other problem i have with the combobox.
>I've placed an combobox in my grid. When I not select anything and entered to the next control the valid event is not fired. Because I need it to prevent that someone not make an selection and I get null values.
>
>Are you familiar with this.
>
>Regards,
>Jan

Jan,
you have two way:
1. use Style = 0 and control COMBO.Keypress

2. stop the grid at BeforeRowColChange

To do this there are various implementations;
a possible start point:

* combobox.Gotfocus
thisform.ActiveControl.Tag = 'StopNullValue'

* combobox.Lostfocus
thisform.ActiveControl.Tag = ''

* grid.BeforeRowColChange
IF m.this.Tag == 'StopNullValue' AND ISNULL(m.this.Value)
   NODEFAULT
ENDIF