Gets or sets the indentation level of the current item. The hierarchy is based on the indentation level values of the tasks, so that a task with a lower index in the collection and having a specific indentation level will become the parent task for the tasks with a higher index in the collection and having an increased indentation level. It is passed to the client side as the read only item.indentation field accessible from the client code.

public int Indentation { get; set; }

Public Property Indentation As Integer