Radio buttons
From Team Developer SqlWindows Wiki
Radio Button
Contents |
How to set all radiobuttons in the same group to FALSE 
Radiobuttons placed in a group always have one button which is set to TRUE.
It is not possible to set them all to FALSE.
Use this trick : place a non-visual (hidden) radiobutton in the group and set it to TRUE.
Then all other visual radio buttons will show FALSE.
Consider also to have a visible radio button that is the "None" Option or not using radiobuttons at all, but CheckBoxes.
