property Group.ToolTip as String
Indicates the tooltip of the group.

TypeDescription
String A String expression that specifies the HTML tooltip to be shown when the cursor hovers the Group's header.
By default, the ToolTip property is "", which indicates no tooltip is being shown if the cursor hovers the group's header. The ToolTip property indicates the tooltip to be shown when the cursor hovers the event. The ShowToolTip method can be used during the MouseMove event to display a custom tooltip. Use the ToolTipPopDelay property specifies the period in ms of time the ToolTip remains visible if the mouse pointer is stationary within a control. Use the ToolTipFont property to change the tooltip's font. 

The property supports the following built-in HTML tags: