Load kendo ui treeview children when selected node?

Load kendo ui treeview children when selected node?

hi, i want use mvc kendo ui treeview and load children node when selected
node but i don't Know implement it, please help me?
public JsonResult Employees(string id)
{
var dataContext = new Data.ISMSEntities();
var employees = from e in dataContext.Assets
where (string.IsNullOrEmpty(id)?e.LocationID_FK==null:
e.LocationID_FK == id)
select new
{
id = e.LocationID_FK,
Name = e.asName
,
//hasChildren = e.asName.Any()
hasChildren=true
};
int i=employees.Count();
return Json(employees, JsonRequestBehavior.AllowGet);
}