You use a GroupBox to group a set of related controls. When a user tabs from another control to a GroupBox, or selects a GroupBox, the first control in the GroupBox gets focus. To tab between controls in a GroupBox, set the tab value of the GroupBox to 0 and assign a tab value to each control within it.
All RadioButtons in a GroupBox are considered to be in a group. For more information about using RadioButtons in GroupBoxes, see “RadioButton”.
