easyui form load 数据表单有下拉框

(function () {
        
        $('#text1').combobox({
            url: 'http://localhost:5463/test/getComboJson'
        })
        $('#text2').combobox({
            url: 'http://localhost:5463/test/getComboJson'
        })
        $('#text3').combobox({
            url: 'http://localhost:5463/test/getComboJson'
        })
        $('#text4').combobox({
            url: 'http://localhost:5463/test/getComboJson'
        })


        $('#text5').combotree({
            url: 'http://localhost:5463/test/getTreeJson'
        })


        Public.post("http://localhost:5463/test/getFristOne", {id: 34}, function (data) {


            $('#form1').form('load', data);


        })
    })

 我让下拉框延迟加载看form会不会加载不上？？

public ActionResult getFristOne() {

            Dictionary<string, object> dic = new Dictionary<string, object>();
            dic.Add("text1", "1");
            dic.Add("text2", "2");
            dic.Add("text3", "3");
            dic.Add("text4", "4");
            dic.Add("text5", "5");
            //Thread.Sleep(2000);//线程挂起1000毫秒
            return Json(dic, JsonRequestBehavior.AllowGet);
        }
        public ActionResult getTreeJson() {

            IList<Dictionary<string, object>> List = new List<Dictionary<string, object>>();
            for (int i = 0; i < 5000; i++)
            {
                Dictionary<string, object> dic = new Dictionary<string, object>();
                dic.Add("id", i.ToString());
                dic.Add("text", "项目"+i);
                IList<Dictionary<string, string>> children = new List<Dictionary<string, string>>();               
                dic.Add("children", new ArrayList());
                List.Add(dic);
            }

            Thread.Sleep(3000);//线程挂起1000毫秒

            return Json(List, JsonRequestBehavior.AllowGet);
        }


        public ActionResult getComboJson()
        {

            IList<Dictionary<string, object>> List = new List<Dictionary<string, object>>();
            for (int i = 0; i < 5000; i++)
            {
                Dictionary<string, object> dic = new Dictionary<string, object>();
                dic.Add("value", i.ToString());
                dic.Add("text", "项目" + i);
                List.Add(dic);
            }

            Thread.Sleep(3000);//线程挂起1000毫秒

            return Json(List, JsonRequestBehavior.AllowGet);
        }

 结果加载上了。

阅读easyui的源代码发现，这个它是根据name来反找了一下组件的实例然后调用了setValue方法