Jquery ajax 绑定multiselect多选下拉选项,同时异步执行返回值

Jquery ajax 绑定multiselect多选下拉选项,同时异步执行获取返回值

         function load(mslt_employees,belongto,mark) {//传入$(#ID)
             var jsondata = JSON.stringify({ belongto: 1, username: username });
             var emp = null;
             jQuery.ajax({
                 type: 'POST',
                 url: "../tools/employees_ajax.ashx?action=" + action + "",
                 dataType: "json",//返回JSON对象
                 data:jsondata,//上传JSON格式的参数
                 cache: false,
                 async:false,//异步执行
                 success: function (message) {
                     mslt_employees.empty();//清空下拉标签
                     if (message != "0" && message != "none") {
                         var list = message;
                         for (var i = 0; i < list.length; i++) {
                             if (mark == 1) {
                                 if (belongto != 1) {//设置默认选项                                     mslt_employees.append($("<option value='" + list[i].USERNAME + "' disabled = 'disabled'>" + list[i].USERNAME + "</option>"));
                                 } else {
                                     mslt_employees.append($("<option value='" + list[i].USERNAME + "'>" + list[i].USERNAME + "</option>"));
                                 }
                             } else {
                                 mslt_employees.append($("<option value='" + list[i].USERNAME + "'>" + list[i].USERNAME + "</option>"));
                             }
                             if (i == 0) { emp = list[i].USERNAME; } else {
                                 emp = emp + "," + list[i].USERNAME;
                             }
                         }
                     }
                     mslt_employees.multiselect('refresh');//刷新多选下拉标签                 }, error: function () { return null; }
             });
             return emp;//返回值
         }

原文出处：http://www.cnblogs.com/OnlyDreams/p/4143515.html
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