Problem controlling Tree properties in the Model...

Question

I am trying to control a few properties of a Tree component using properties in the Model.

For instance, I have the following properties:

public var hierarchyTreeOpenItems:Array /* of Object */ = [];
public var hierarchyTreeSelectedItems:Array /* of Object */ = [];
public var hierarchyTreeFirstVisibleItem:Object;

And I reference them like so:

width="100%" height="100%" borderStyle="solid"
dataProvider="{__model.hierarchyData}"
firstVisibleItem="{__model.hierarchyTreeFirstVisibleItem}"
openItems="{__model.hierarchyTreeOpenItems}"
selectedItems="{__model.hierarchyTreeSelectedItems}" />

I am setting these properties in a Command triggered by the initialize Event of my Application. The openItems works, but I cannot get the Tree to select the specified items, nor can I get it to scroll to the position of the firstVisibleItem.

Any thoughts on why this is happening and how I can get it to work?

Thanks.

ericbelair · Answer

Here's my solution:private function creationCompleteHandler():void{ __model.addEventListener(PropertyChangeEvent.PROPERTY_CHANGE, model_propertyChangeHandler);}private function model_propertyChangeHandler( event:PropertyChangeEvent):void{ switch (event.property) { case "hierarchyTreeFirstVisibleItem": case "hierarchyTreeOpenItems": case "hierarchyTreeSelectedItems": { this.validateNow();  break; } }}

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