Defines event marker collection in Gantt.
string
Specifies a custom CSS class for the event marker. This can be used to apply custom styles to the line and label of the marker.
Defaults to null
Date
| string
Specifies the date or day of the event marker.
The value can be a Date
object or a date string.
Defaults to null
string
Specifies the label for the event marker.
Defaults to null