How to select a specific node programmatically?

问题

I have a jstree. I want to select the node which is bound to the object which has a location with id of 158. This works but seems stupid. What's the more idiomatic way of doing this?

var $tree = $('.jstree', myContext),
    node = $tree.find('li').filter(function() { 
        return ( $(this).data().location || {}).id === 158;
    });
$tree.jstree('select_node', n)

回答1:

Just wanted to chime in here as none of the answers worked for me. What finally DID work was very simple:

$('#someTree').jstree('select_node', 'someNodeId');

Note that I didn't initialize someNodeId as a jQuery object. It's just a plain string.

I did this right after a tree was loaded without putting it into a "ready" bind event as it seems to not be necessary.

Hope it saves some one from a few frustrating hours. . .

To hook into the tree after it has been loaded:

.on('loaded.jstree', function() {
    // Do something here...
  });

回答2:

Based on jsTree groups you can try

jQuery("#getStartedTree").jstree("select_node", "#test2");

if the data looks like

The JSON in the TextFile.txt - borrowed from your simple example
 [
     {
     "data" : "A node",
     "children" : [ "Child 1", "Child 2" ]
     },
     {
     "attr" : { "id" : "test1" },
         "data" : {
             "title" : "Long format demo",
             "attr" : { "id" : "test2", "href" : "#" }
         }
     }
 ]

and jsTree set up

My tree container is <div id="getStartedTree">

My jsTree code
 $("#getStartedTree").jstree({
            "themes": {
                "theme": "default",
                "url": "../App_Css/Themes/Default/style.css",
                "dots": true,
                "icons": true
            },
            "json_data": {
                "ajax": {
                    "url": "../SiteMaps/TextFile.txt",
                    "dataType": "json",
                    "data": function(n) {
                        return { id: n.attr ? n.attr("id") : 0 };
                    }
                }
            },
            "plugins": ["themes", "json_data", "ui"]
        });

Is that what you are after?

回答3:

I was able to simulate a click on a jstree node as an alternative way to select a node. The following code is what was used :

$(treeIdHandle + " li[id=" + nodeId + "] a").click();

回答4:

I did it with:

$('.jstree').jstree(true).select_node('element id');

this code:

jQuery.each(produto.categorias, function(i, categoria) {
    $('#lista-categorias').jstree(true).select_node(categoria.dadoCategoria.id);
});

回答5:

i use jstree 3.0.8. don't use 'state'

'plugins' : ['dnd','sort','types','contextmenu','wholerow','ui']

and server offer the json, the selected node has

"state":{"selected":true,"opened":true}

回答6:

If you're populating the tree using HTML instead of JSON data and wondering how to set the node_id, you just need to set the id attribute of the <li> element!

<div class="tree-menu">
    <ul class="menu">
        <li id="node_1">
            Node 1 - Level 1
           <ul class="menu">
               <li id="node_3">
                   Node 3 - Level 2
               </li>
           </ul>
        </li>
        <li id="node_2">
            Node 2 - Level 1
        </li>
    </ul>
</div>

Then

$('.tree-menu')
    .jstree(true)
    .select_node("node_3");

will select the Node 3 - Level 2 node.

For those getting javascript errors, remember to use Full version of jQuery, not the slim version!

For all down voters, here is the demo to prove it's working: https://jsfiddle.net/davidliang2008/75v3fLbs/7/

回答7:

This solution Works for me

// after the tree is loaded
$(".jstree").on("loaded.jstree", function(){
    // don't use "#" for ID
    $('.jstree').jstree(true).select_node('ElementId');
});

and even in a php loop (dynamically) :

$(".jstree").on("loaded.jstree", function(){
    <?php foreach($tree as $node): ?>
        $('.jstree').jstree(true).select_node('<?=$node?>');
    <?php endforeach;?>
});

Hope this works for you.

来源：https://stackoverflow.com/questions/8466370/how-to-select-a-specific-node-programmatically

标签

jstree