jstree checkbox checked on load

Question

I'm fighting with jQuery jsTree plugin checkbox. Ok, I have find out how to handle events on checking or unchecking checkbox. If its useful I can paste a code:

.bind("check_node.jstree", function(e, data)
        {

            if(data.rslt.obj !== undefined && data.rslt.obj.attr(\'id\') !== undefined)
            {

                jQuery.ajax({
                        async : false,
                        type: "POST",
                        dataType: "json",
                        url: "adsmanager/adsfields/ajaxappendcategory",
                        data:
                        {
                            "id" : data.rslt.obj.attr(\'id\'),
                            "itemId" : "' . Yii::app()->getRequest()->getParam('id') . '",
                        },
                        success: function(r)
                        {
                            if(r === undefined || r.status === undefined || !r.status)
                            {
                                data.rslt.obj.removeClass(\'jstree-checked\');

                                data.rslt.obj.addClass(\'jstree-unchecked\');

                            }
                            else
                            {
                                niceBox(\'ok\');
                            }
                        }
                    });

            }

            return true;
        })

With this everything is ok, but know I cant find anywhere how to checked checkboxes on tree load, for example, if I'm using jsTree like category selector for my news Item when I create new news item everything is ok and when I want to update that item I need jsTree with selected categories and that's I cant find any example how to select nodes on loading jsTree.

Any help with this question?

Answer 1

For current JSTREE version 3.2.1 and JSON data we need use state : { checked : true }

and add to config for checkbox section

"checkbox":{ "tie_selection": false }

this example work fine

data : [
            { "text" : "Root", state : { opened : true }, children : [

                { "text" : "Child 2", state : { checked : true },

]