ajax返回一个json数据，前端js解析问题

{totalCount:2,success:true,error:"",singleInfo:"",data:[{"ID":"2","UserName":"123","Name":"111","ViewCount":"0","Images":"Upload/201404/25/20140425135607135672.jpg","Age":"7"},{"ID":"3","UserName":"12112","Name":"111","ViewCount":"1","Images":"Upload/201404/25/20140425135607985594.jpg","Age":"8"}]}

返回数据如上，可以获取到返回数据，js肿么解析出data里的数据，循环添加到

<ul id="all"><li></li><ul>

 ul里，

<script>

                function Search() {

                    $.ajax({

                        type: "POST",

                        url: "Search.aspx?sname=111",

                        dataType: "html",

                        //data: "sname=111",

                        success: function (msg) {

                            var jsonText = JSON.stringify(msg);

                            alert(jsonText);

                        },

                        error: function () {

                            alert("error");

                        }

                    });

                }

        </script>

第一次用json不熟悉，求教各位
------解决方案--------------------
jsonTest.data;改在jsonText.data
------解决方案--------------------
 dataType: "html",

这样msg就是string类型的，要eval转为json对象，你返回的字符串不是标准json格式的字符，不能指定dataType为JSON，要不success都不执行

function Search() {

    $.ajax({

        type: "POST",

        url: "Search.aspx?sname=111",

        dataType: "html",

        //data: "sname=111",

        success: function (msg) {

  &