property NonworkingTime.GroupID as Variant
Specifies the ID of Group objects to apply the nonworking-time.

TypeDescription
Variant Could be a numeric expression, a string of numbers separated by comma, or a one-dimensional safe array of values that indicates the ID of the Group objects to apply the current nonworking time object.
By default, the GroupID is empty, which indicates that the non-working time is applied to all groups. The GroupID property specifies the list of groups that displays the current non-working time. Use the GroupID property to specify a different non-working time for different groups. The ID property of the Group object indicates the identifier of the group to be displayed on the scheduler. Use the Add method to add new groups to the control.