Thanks for your answer, but I haven't been able to apply it. I tried the
formula in the inputmask propertie of the column and combo box, but it
didn't work, I even used it on the dynamicimputmask propertie of the column.
Could you give an example on how to implemnt it?
Here is some data about the combo box:

boudncolumn=2
boundto=.T.
columnwidths=0,50,0
columncount=3
rowsource='table'
rowsourcetype=alias

* the longuitude of the field is 3 (character)

TIA


>>In one of the columns of my grid I use a combo box as the current control, everything works fine, except that every time the column get the focus the combo box goes blank and you can't see the current value of the corres-ponding field.
>>How can avoid this effect?
>>
>>TIA
>
>Set inputmask to replicate('X',WidthOfMax_ValueLEn_FieldLen)
>Cetin