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POCreate a dynamic treeview with json data - dynatree in jsp
 

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  1. POCreate a dynamic treeview with json data - dynatree in jsp
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    <p>I have a table in database like this:</p> <pre><code>id - title - parentID ----------------------------- 1 Root null 2 item 1 1 3 item 2 1 4 item 3 1 5 item 3.1 4 </code></pre> <p>this should create something like this:</p> <pre><code>--Root ----item 1 ----item 2 ----item 3 -------item 3.1 </code></pre> <p>here's my controller to fetch the root node and its children:</p> <pre><code>@RequestMapping(value="/CourtBranch/LoadTreeView", method = RequestMethod.GET) public void LoadList(@RequestParam("ParentId") String parentID,HttpServletRequest req, HttpServletResponse resp) { List lst; if (parentID.equals("Root")) { lst = _COURTBRANCH.LoadTreeChildren(null, "Root"); // selects records which have parent=null } else { lst = _COURTBRANCH.LoadTreeChildren(parentID, "TreeNode"); // selects records which have parent=parentID } resp.setContentType("application/json"); resp.setCharacterEncoding("utf-8"); try { resp.getWriter().print(_gson.toJson(lst)); } catch (IOException e) { e.printStackTrace(); } } </code></pre> <p>and this script loads my root:</p> <pre><code>&lt;script type="text/javascript"&gt; $(function(){ $("#tree").dynatree({ initAjax: { url: "/CourtBranch/LoadTreeView.json?ParentId=Root", data: { mode: "funnyMode" } }, onActivate: function(node) { $("#echoActive").text(node.data.title); }, onDeactivate: function(node) { $("#echoActive").text("-"); } }); }); &lt;/script&gt; </code></pre> <p>now I need to know how to send the root's id to my controller to fetch root's children and add them to the root node. should I use appendAjax function? how?</p>
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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