May 18, 2006 - Tree Node Visilibility Based on values in the dataProvider
How to control the visilibity of a node's children

Problem: You want to programmatically set the visibility of a node and all it's children in an mx:Tree based on values of an attribute in the data provider (e.g XML model). What's the based way to do this?

Solution: Michael Montagna of Adobe writes:

"The Tree uses the ITreeDataDescriptor interface to pull items out of the data, so a custom impl could filter based on whatever criteria you'd like. Specifically you'll want to write a custom getChildren to return only the children that you want displayed. You may also need isBranch and hasChildren but the defaults may work for you."