How can I control the properties of tree using Cairngorm MVC?

I'm trying a few properties of a component of the tree using properties in the control template.

For example, I have the following properties:

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

And I refer to them as follows:

"" < mx:Tree xmlns:mx = ' http://www.adobe.com/2006/mxml '
Width = "100%" height = "100%" borderStyle = "solid".
dataProvider = "{__model.hierarchyData}" "
firstVisibleItem = "{__model.hierarchyTreeFirstVisibleItem}" "
openItems = "{__model.hierarchyTreeOpenItems}" "
selectedItems = "{__model.hierarchyTreeSelectedItems}" / > "

I'm setting these properties in a command generated by the initialization event of my Application. The openItems works, but I can't get the tree to select the specified items, or I can get it to reach the position of the firstVisibleItem.

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

Thank you.

I fixed it. I put the properties in a different order (openItems, then selectedItems, and then firstVisibleItem) and perform a validateNow() on the tree when one of these properties are updated.

Seems to work...

Tags: Flex

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