参考文档：

https://www.cnblogs.com/luozhihao/p/4679050.html

http://jsfiddle.net/vakata/2kwkh2uL/5/ 

 

核心的关键点是：

组装节点的children元素时，设置  children = true

 

$('#jstree_company').jstree({                "core": {                    "animation": 0,                    "check_callback": true,                    "themes": { "stripes": true },                    'data': {                        'url': function (node) {                            return '/IS/CDictionary/GetDictionTree';                        },                        'data': function (node) {                            return { 'id': node.id,'type':'company' };                        }                    }                },                "plugins": ["contextmenu", "dnd"],            });

 

 

组装的后台代码：

JSTree treeFlow = new JSTree()                {                    id = item.DictID.ToString(),                    parent = id,                    text = item.Title,                    state = new NodeState() { opened = false },                    children = true                };                trees.Add(treeFlow);