Gets or sets the indentation level of this SimpleNodeItem. The hierarchy is based on the indentation level values of the nodes, so that a node with a lower index in the collection and having a specific indentation level will become the parent node for the nodes with a higher index in the collection and having an increased indentation level. It is recommended to set this property.

[BindableAttribute(true)]
public int Indentation { get; set; }

<BindableAttribute(True)> _
Public Property Indentation As Integer