This sample illustrates using an option button group with no default selection and binding a character field to the option group.
To display an option group with no selected button, do one of the following:
Set the Value property of each of the option buttons in the group to 0 of .F.
Set the Value property of the option button group to 0.
To store the caption of option buttons to a table field
Set the ControlSource of the option button group to the field.