DHTMLX Docs & Samples Explorer

Collapse/Expand nodes

You can easily collapse/expand any node, branch or the entire tree.

Expand all

Collapse all

Close selected item

Open selected item

Collapse selected branch

Expand selected branch

 
Source
<link rel="STYLESHEET" type="text/css" href="../../codebase/dhtmlxtree.css">
<script  src="../../codebase/dhtmlxcommon.js"></script>
<script  src="../../codebase/dhtmlxtree.js"></script>
 
<script>
function closeAllRoots() {
    var rootsAr = tree.getSubItems(0).split(",");
    for (var i = 0; i < rootsAr.length; i++) {
        tree.closeAllItems(rootsAr[i]);
    }
}
</script> <table> <tr> <td valign="top"> <div id="treeboxbox_tree" style="width:250px; height:218px;background-color:#f5f5f5;border :1px solid Silver;; overflow:auto;"></div> </td> <td rowspan="2" style="padding-left:25" valign="top"> <a href="javascript:void(0);" onClick="tree.openAllItems(0);">Expand all</a><br><br> <a href="javascript:void(0);" onClick="tree.closeAllItems(0);">Collapse all</a><br><br> <a href="javascript:void(0);" onClick="tree.closeItem(tree.getSelectedItemId());">Close selected item</a><br><br> <a href="javascript:void(0);" onClick="tree.openItem(tree.getSelectedItemId());">Open selected item</a><br><br> <a href="javascript:void(0);" onClick="tree.closeAllItems(tree.getSelectedItemId());">Collapse selected branch</a><br><br> <a href="javascript:void(0);" onClick="tree.openAllItems(tree.getSelectedItemId());">Expand selected branch</a><br><br> </td> </tr> <tr> <td>&nbsp;</td> </tr> </table> <script>
tree = new dhtmlXTreeObject("treeboxbox_tree", "100%", "100%", 0);
tree.setSkin('dhx_skyblue');
tree.setImagePath("../../codebase/imgs/csh_bluebooks/");
tree.loadXML("../common/tree3.xml");
</script>