'Declaration Public Property DrillElements As DrillElement()
public DrillElement[] DrillElements {get; set;}
Set the DrillElements property to a non-null, non-empty array to define the drill down hierarchy (the tree-like structure of parent and child charts descendant from one top-level chart). Each DrillElement object in this array should be initialized prior to the user interacting with the Chart, so it's advisable that this property be initialized in Form or Page load events.
The drill down hierarchy contains nodes describing the necessary properties of child charts descendent from one topmost chart (the chart appearing when UltraChart is first databound and displayed before any drill down has occured).
The consequences of changing DrillElement objects in this collection once the user has interacted with the drill down hierarchy are undefined. If you must make changes to the structure of the drill down hierarchy, return the user to the topmost chart.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, 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