jQuery DynaTree - how dynamically create nodes

Question

I have a web app (JSPs and Servlets along with jQuery) that I am using a DynaTree to show a set of files found using a user search. The user can of course put in different values, resulting in a different set of matching files.

So, my Q:

Given that a tree is statically coded thusly in my JSP's JavaScript:

$("#tree").dynatree({
  ...
  children: [
    {title: "Folder 2", isFolder: true, key: "folder2",
      children: [
        {title: "Sub-item 2.1"},
        {title: "Sub-item 2.2"}
      ]
    },
    {title: "Item 3"}
  ]
...

How do I create this structure programmatically? I assume some way to create or access a root and then use addChild( aNode ) or some such, but I don't find a good example/reference.

Has anyone done this ? Thanks!

Answer 1

Got it to work. Here's the jQuery:

    $('#findFiles').click(function() {  // Locate HTML DOM element with ID "findFiless" and assign the following function to its "click" event...
    chosenSite = document.getElementById("siteName").value;
    searchVal = document.getElementById("searchFor").value;
    searchTyp = document.getElementById("searchType").value;
    $.get('FileSearchServlet', {siteName: chosenSite, searchFor: searchVal, searchType: searchTyp}, function(responseJson) {    // Execute Ajax GET request on URL of "FileSearchServlet" and execute the following function with Ajax response JSON...
        //-- toClient
        var resultsToClientNode = $("#tree").dynatree("getTree").selectKey("resultsToClient");
        resultsToClientNode.removeChildren();
        toClientFilenames = responseJson.toClient;  //0-N filenames
        $.each(responseJson.toClient, function() {
            resultsToClientNode.addChild({
              title: this
            });
        });         
       ...

Here's the JSON in the response (use Firebug > Net > XHR to see it):

fromClient
["O_TE015308_XX_343_182754070041.OLD", "O_TE015308_XX_343_182755030040.OLD", "O_TE015308_XX_353_131142014034.OLD"]

toLab
[]

fromLab
[]

toClient
["R_TE015308_XX_340_154659.OLD"]