easyui-combotree的用法

 1 <input id="reporttypeid" name="reporttypeid" class="tb-input easyui-combotree easyui-validatebox" style=" 100%;" value="${data.reporttypeid}"
 2                                 data-options="
 3                                     required: true,
 4                                      panelHeight: 'auto',
 5                                      editable:false,
 6                                      valueField:'id',
 7                                      textField:'typename',
 8                                      cascadeCheck: false,
 9                                      multiple: false,
10                                     editable: true,
11                                     checkbox: false,
12                                      url:'/xxx/xxx',
13                                      loadFilter:function(data){
14                                          return data.rows;
15                                      },
16                                      formatter:function(node){
17                                         return node.typename;
18                                     },
19                                      onSelect:function(node){
20                                         $('#reporttypeid').val(node.id);
21                                     },
22                                     onBeforeExpand : function(node) {
23                                         if (node.children === null || node.children === undefined) {
24                                             $('#reporttypeid').combotree('tree').tree('options').url= '/xxx/xxx?parentid=' + node.id;
25                                         }
26                                     }"/>