The EventPattern property specifies the event's pattern color if it belongs to a group. The ApplyGroupingColors property indicates whether the EventForeColor, EventBackColor and EventPattern,  properties of the Group object are being applied to events. The BodyPattern property specifies the pattern of the event's body. The GroupID property of the Event specifies the identifier of the Group that owns the event. The HeaderPattern property can be used to specify a different pattern on the group's header.

The control displays groups if

• ShowGroupingEvents property is True
• The Groups collection has elements. By default, the Groups collection contains no Group objects.