Dragfill[Sample|Source|Documentation] Dragfill Description The C1Slider supports dragging the fill line between the two drag handles. Fill dragging is allowed if the following properties are set to corresponding values: Range: true DragFill: true Values * *The Values property is used to specify multiple handles when the Range property is set to True. The end-user can drag the range area, and the space between the handles will fill with a different background color to indicate those values are selected.