This method allows application logic to drill back up the chart, refreshing the chart with the information and presentation of the parent chart. The effects of calling DrillBack() or using the ShowButton property is identical.
Developers may call DrillBack() repeatedly in a loop, until the method returns false, to quickly ascend to the topmost chart in the drill down hierarchy from any child chart. When doing so, it is advisable to first set UltraChart's Visible property to false to prevent screen flicker as chart type may change in the process of drilling back to the topmost chart from great depth.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2