Dealing with multiple children nodes under a parent can be tricky. For instance, when trying to open a specific node using
$("#jstree").jstree("open_node", $('#node_27'));$('#node_27') to return an empty array.
If you have the child's ID but they are not yet added to the DOM until the parent is opened, how can you go about opening it?
When looking to "deeply open" a node, you can achieve this by using the following code:
$("#jstree1").jstree("open_node", ['rootId','childId','childChildId','yourNodeId']);
Alternatively, there is a convenient method called _open_to that automates this process for you:
$("#jstree1").jstree("_open_to", 'yourNodeId'); //j1_5 in your case
This will take care of opening any necessary nodes to reach the desired node smoothly.
The _open_to method is intended for internal use only and should not be directly accessed. While it may currently work, there is no guarantee that it will remain unchanged in the future. The creator of jsTree could decide to modify the underlying mechanics at any time.
If you need to expand the parent nodes leading up to a specific node, you can achieve this easily by using the following code:
$('#jstree1').jstree('select_node', 'node_27' );
Additionally, this will result in the target node being selected as a bonus feature.
When using ajax to populate a tree, the child nodes are lazily loaded. It is necessary to first load the parent node using 'load_node' and then select the children nodes using 'select_node'.
$('#jstree').on('refresh.jstree', function () {
$('#jstree').jstree(true).load_node('parent-id', function () {
$('#jstree').jstree().deselect_all();
$('#jstree').jstree('select_node', 'child-id');
});
});
$('#jstree').jstree(true).refresh(false, false);
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