You really don't need to do all that. Try this:
private function autoExpand():void
{
assemblyTree.expandChildrenOf(tree.dataProvider[0],true);
}
Wayne
--- In [email protected], "Darin Kohles" <[EMAIL PROTECTED]>
wrote:
>
> I encountered the same problem and wrote my own version.
>
> public var categoryNodes:XML = new XML(); // xml data of the tree
set
> elsewhere
> public var arrayFromNodes:ArrayCollection = new ArrayCollection();
> public var nodeCount:Number = 0;
>
> /**
> * returns an xml node based on a tree index
> */
> public function getNodeAt(index:Number):XML{
> arrayFromNodes = new ArrayCollection();
> nodeCount=0;
> arrayFromNodes.addItem(categoryNodes[nodeCount]);
> getNodeList(XMLList(categoryNodes));
> return XML(arrayFromNodes.getItemAt(index));
> }
>
> /**
> * returns a flattend node listing from an xml tree
> */
> private function getNodeList(currentList:XMLList):void{
> for each(var childIndex:XML in XMLList(currentList.children())){
> nodeCount++
> arrayFromNodes.addItem(childIndex);
> if(XMLList(childIndex).children().length()){
> getNodeList(XMLList(childIndex))
> }
> }
> }
>
> As to the expandChildrenOf() function it works for me by passing in
> the root node for the tree dataProvider.
>
> --- In [email protected], "carl_steinhilber"
> <carl_steinhilber@> wrote:
> >
> > Well, now I'm stymied.
> >
> > With Flex 1.5, I was able to expand all the nodes of an mx:Tree
with
> > something like:
> >
> > function setOpenAll(aryNodes):Void{
> >
> > var childNode = aryNodes.getTreeNodeAt(0);
> > var aryChildren = aryNodes.getChildNodes();
> >
> > for (var i = 0;i < aryChildren.length;i = i + 1){
> > childNode = aryNodes.getTreeNodeAt(i);
> > treeElem.setIsOpen( myNode, true, false, false);
> > if ( childNode.hasChildNodes() ){
> > setOpenAll(childNode );
> > }
> > }
> > }
> >
> > and invoke it with a button function like
> >
> > click="setOpenAll(treeElem.dataProvider)"
> >
> >
> > But this throws an error in Flex 2. Near as I can tell...
there's no
> > getTreeNodeAt() function anymore.
> >
> > Anyone know how to go about expanding all the nodes of a tree,
now, in
> > Flex 2? I'm continually surprised there are no methods
> > openAll()/closeAll() for the Tree. Seems like the new
> > expandChildrenOf() method would make things easier... but not
quite
> > sure how to use it.
> >
> > Thanks in advance,
> > -Carl
> >
>
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