SourcePro : Installing and Building Your SourcePro® Products : Quick Start : Keyboard Shortcuts : Checkbox and Radio Button Selection and Deselection
Checkbox and Radio Button Selection and Deselection
For check boxes, the space bar toggles the selection.
For radio buttons, the space bar selects the item, but has no effect thereafter. The only way to deselect the radio button is to move to another radio button in the same set and select it.
The accelerator key for both has the same effect as pressing the space bar when the check box or radio button has the focus.