FormatConditions Collection [Access 2003 VBA Language Reference]
The FormatConditions collection represents the collection of conditional formats for a combo box or text box control. Each format is represented by a FormatCondition object.
Using the FormatConditions Collection
Use the FormatConditions property of a combo box or text box in Visual Basic or in an expression to return a FormatConditions collection. Use the Add method to create a new conditional format, and use the Modify method to change an existing conditional format.
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.