Yes, we did the same thing, although we supply our own +/- GIFs so we still get kind of the same effect as using the ones supplied with the component.
I haven't looked at the component much lately, though, so I don't know if it has been re-architected to allow the programmer to intercept the expand event that is triggered if we have showNav="true". Sean, can you comment on this? - Brendan -----Original Message----- From: Marcel Ruff [mailto:[EMAIL PROTECTED] Sent: Thursday, October 06, 2005 5:02 AM To: MyFaces Discussion Subject: Re: Tree2 - on-demand load capable? Eric Pias wrote: > Hello, > > > > I would like to implement a Tree2 that loads child nodes on demand. > What I would like to do is sub-class TreeNode or something else and > when the user clicks the + on a node, at that point my code would go > out and get just the first level children under that node. I have > tried implementing TreeNode and doing this type on functionality in > getChildren() without success so far. Before I spend a lot more time > debugging, I want to make sure that Tree2 allows for what I want to > do. Does anyone know for sure? > > > > Thanks, > > Eric > Hi Eric, i have the same task and after searching the mailing list i ended up with a workaround i found in an old mail (i can't remember who posted it). The problem with this workaround is that i needed to remove the '+' icon with <t:tree2 ... showNav="false" ...> and make the folder icon clickable with <h:commandLink action="#{t.toggleExpanded}" actionListener="#{navigationBacker.processAction}"> In my NavigationBacker.java:processAction(ActionEvent e) i load the children nodes with data from EJB3-persistency. The bad thing is that the '+' icon is now invisible, but i couldn't find a way to get the event when somebody clicks on the '+' icon. The org.apache.myfaces.custom.tree2.HtmlTree.java seems to register _expandControl = new HtmlCommandLink(); to get internally the '+' clicks, but i haven't found a way to receive the clicks in my code. I have added this with some code snippets to the Wiki page at http://wiki.apache.org/myfaces/Tree2 Please edit the page if you have a better solution, rgds Marcel
