The Check property indicates whether the current item displays a check box.  The Checked property specifies whether the item is checked or un-checked. The Radio property specifies whether the item displays a radio-button. The RadioGroup property specifies a group of radio-buttons.  A radio group allows a single radio-item to be checked inside. The GetChecked property gets a collection of checked items. The GetUnchecked property gets a collection of checked items. The GetRadio method gets a safe array with the radio-items being checked within a radio group. Use the Background(exCheckBoxState0)/Background(exCheckBoxState1) property to specify the visual appearance of the check-boxes in the control. Use the UseVisualTheme property to specify whether the visual appearance for the check-boxes to be as indicated by the current XP theme. Use the ShowCheckedAsSelected property on True, to show the checked items as selected.