By default, the ForeColorDisabled property is gray. It specifies the color to show the selected date, if the checkbox is unchecked. The property has effect if the AllowCheckBox property is True, and the check box is unchecked. Use the ForeColor property to specify the color of the selected date when check box is checked. The selected date is not shown, if the check box is unchecked, and the ForeColorDisabled property is not equal with the control's BackColor property, so the ForeColorDisabled can be used to hide the selected date when the checkbox is unchecked.