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Chapter 15. Designing Custom Multitable ... > Adding Option Groups with the Wizard

Adding Option Groups with the Wizard

Option buttons, toggle buttons, and check boxes ordinarily return only Yes/No (–1/0 or True/False) values when used by themselves on a form. These three controls also can return Null values if you change the TripleState property value to Yes. Individual bound option button controls are limited to providing values to Yes/No fields of a table or query. When you place any of these controls within an option group, however, the buttons or check boxes can return a number you specify for the value of the control’s Option Value property.

The capability to assign numbers to the Option Value property lets you use one of the preceding three controls inside an option group frame for assigning values to the HRRating field of the HRActions table. Option buttons are most commonly used in Windows applications to select one value from a limited number of values.


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