'Declaration Public Property GroupManager As UltraRadioButtonGroupManager
public UltraRadioButtonGroupManager GroupManager {get; set;}
By default, the UltraRadioButton is in a 'group' with any other UltraRadioButton controls that are contained within the same parent control.
The default grouping can be overriden by assigning each UltraRadionButton to the same UltraRadioButtonGroupManager.
The UltraRadioButtonGroupManager also provides additional functionality to get or set the 'selected' item, detect changes, and provide shared appearances to the controls in the same group.
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