Returns C1.C1Schedule.MappingInfo object for the C1.Win.C1GanttView.Task.Start property of the C1.Win.C1GanttView.Task object. If the storage object is bound to a data source via its DataSource property, the properties of this object allow the C1.Win.C1GanttView.Task.Start property to be bound to the appropriate field in the data source.