Hi Cetin,

Things come closer (but not much clearer)

Ok. I can see your idea work.

At least on a plain form

I can not get this to work on my forms.
It must be something dataenvironment specific. Your example fails if I set datasession = 1 and run in the environment of my Form.

If I use the characters instead of integer it will influence its record source, if I use the integer it fails:

-combobox will not display the value
-comboobx value will be inital at fields value, DisplayValue will be empty
-If I open the combo to pick (or just close) it will set the field (controlsource) to 0

Do you have any idea what could have influence?

Agnes