FormatCondition Object [Access 2003 VBA Language Reference]
The FormatCondition object represents a conditional format of a combo box or text box control and is a member of the FormatConditions collection.
Using the FormatCondition Object
You can use the FormatConditions(index), where index is the index number of the conditional format, to return a FormatCondition object.
Conditional formatting can also be set on a combo box or text box from the Conditional Formatting dialog box. The Conditional Formatting dialog box is available by clicking Conditional Formatting on the Format menu when a form is in Design view.