I think you're stuck. Without back-references or some way to efficiently calculate the parent objects, you'll have to call expandItem over and over again and search at each level. Building your own parentMap as you do the walk might save you time later.
________________________________ From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of j_lentzz Sent: Tuesday, February 12, 2008 3:30 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: How to expand nodes down in trees Additional info, the result format is "object", not "e4x", so I don't seem to have the parent call to work with - it is null. I'm not sure what is required on the servlet side (java) to use a different format. I was given this to work with and didn't write the servlets. Thanks for any help, John --- In flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com> , "Tracy Spratt" <[EMAIL PROTECTED]> wrote: > > Do it the other way around. Find the nodes you want displayed, then use > xml.parent() to climb up the ancestor chain, expanding nodes as you go. > I have a simple example on www.cflex.net <http://www.cflex.net/ <http://www.cflex.net/> > . > > > > Tracy > > > > ________________________________ > > From: flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com> [mailto:flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com> ] On > Behalf Of j_lentzz > Sent: Tuesday, February 12, 2008 4:28 PM > To: flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com> > Subject: [flexcoders] How to expand nodes down in trees > > > > Hi, > > I have an app where I need open up the nodes of a tree to display a > node chosen through a search text. For example, if I type 'flex' in > the search box, I need to display all the nodes that have 'flex' in > their label. This means that I need to open all the parent nodes down > to that node. I'm using flex 2, so I can't use any new Flex 3 > methods. I have a routine that will recursively open up the parent > nodes from a given node, but it needs to start at the top of the tree > to work, so if many items are found it gets very slow. I'd like to do > it in a single pass. I can identify the nodes I want to display by > searching through the XMLList from calling > XMLListCollection(this.dataProvider).descendants(); Is there a way to > use this structure to determine the trail of nodes to open without > having to start at the top of the tree and recurse for each item? > > Thanks, > > John >
