Controller：

 public class HomeController : Controller
    {
        [HttpGet]
        public ActionResult JsTreeDemo()
        {
            return View();
        }
        public JsonResult Nodes()
        {
            var nodes = new List<JsTreeModel>();
            nodes.Add(new JsTreeModel() { id = "101", parent = "#", text = "Kunal" });
            nodes.Add(new JsTreeModel() { id = "102", parent = "#", text = "Root node 1" });
            nodes.Add(new JsTreeModel() { id = "103", parent = "102", text = "Child 1" });
            nodes.Add(new JsTreeModel() { id = "104", parent = "102", text = "Child 2" });
            return Json(nodes, JsonRequestBehavior.AllowGet);
        }
   }

Model

  public class JsTreeModel
    {
        public string id { get; set; }
        public string parent { get; set; }
        public string text { get; set; }
    
    }





JsTreeDemo.cshtml


    <meta name="viewport" content="width=device-width" />
    <title>JsTree Demo</title>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" />
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/themes/default/style.min.css" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.12.1/jquery.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/jstree.min.js"></script>

    <link rel="stylesheet" href="https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/themes/smoothness/jquery-ui.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>
    <script src="~/MyClient.js"></script>