Binding Trees 

The example below shows the data binding of a Tree UI element to a context structure whose hierarchical structure is not known at design time and for which, therefore, a fixed number of levels cannot be determined at design time. The context provides a special node for this case, the recursive node.

Procedure

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       1.      In the context of the view, create a node called TreeNode and set cardinality to 0..n and singleton to true.

       2.      Create a Recursion Node called RecursionNode.

       3.      In the Outline view, insert a Tree UI element into your view.

       4.      Insert a TreeNodeType into the Tree element.

       5.      Bind the Tree.dataSourceproperty and the TreeNodeType.dataSource to the TreeNode