ajax tree

[Tali Garsiel]

Hi,     I needed a tree component that uses lazy load + ajax.   Each node expand should go to the server using ajax and ask (hibernate) for extra nodes.   I came up with the following solution but I'm not sure about it.   I subclassed tree2 so it would render tree content in _javascript_.   I changed method EncodeChildren that instead of writing the response it generates _javascript_   So it goes:   out.write("var treeContent ='"); (line I added)   EncodeTree....   out.write("getFrame().document.all['" + selectedNodeId + "'].innerHTML = treeContent;"); (line I added)   I also added to function encodeCurrentNode a div inside which the content goes.   out.startElement(HTML.DIV_ELEM, tree); String divId = "open_" + createSpanId(tree.getId(),tree.getNodeId()); out.writeAttribute(HTML.ID_ATTR,divId,""); out.endElement(HTML.DIV_ELEM);   An Ajax phaselistener gets the request and calls the component to render itself.   Is it a right approach - I have a feeling that its not and would appreciate your feedback   Thanks , Tali ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________