Sorry maybe my question wasn't precise enough, it's obviously a conditionnal format but my problem is that the form uses the datasheet view so you see many records at the same time. So where do I put this conditionnal format?
The best I found is in the 'on current' event but then the color changes for every records each time I switch line because objects have only on value per property per form. So when I change the value, it changes for every record on the form.
Any clue?