Gets or sets a collection that defines predecessor items referring the task items that the current item depends of, and having the relations displayed in the Gantt Chart view as dependency lines, but it is not used internally for computing/updating task start and finish date and times (generating work time intervals) based on its defined dependencies. It is passed to the client side as the item.predecessors array accessible from the client code.

public List<PredecessorItem> Predecessors { get; set; }

Public Property Predecessors As List(Of PredecessorItem)