BarChartTooltipDirection Inherits: Enum Controls showing tooltip on top or bottom. Properties AUTO – Tooltip shows on top if value is positive, on bottom if value is negative. BOTTOM – Tooltip always shows on bottom. TOP – Tooltip always shows on top. Properties# AUTO = 'auto' # Tooltip shows on top if value is positive, on bottom if value is negative. BOTTOM = 'bottom' # Tooltip always shows on bottom. TOP = 'top' # Tooltip always shows on top.