标签:http os io 文件 for 数据 ar div
//js代码
//城市下拉列表
            $("#selPro").change(function() {                var option = "";                $.ajax({                    type: "post",                    url: "homeHandler/HomeProvince.ashx",                    dataType: "json",                    data: "proStr=" + $("#selPro").val(),                    success: function(message) {                        if (message != null) {                            $("#selCity option").remove();                            option += "<option value=\"0\">==请选择==</option>";                            $.each(message.city, function(i, item) {                                option += "<option value=\"" + item.id + "\">" + item.name + "</option>";                            });                        }                        $("#selCity").append(option);                    }                });            }); public void ProcessRequest(HttpContext context)    {        //得到城市Id        int proId = Convert.ToInt32(context.Request.Params["proStr"]);        if (proId != 0)        {            //根据城市Id查询城市下的区县            List<City> listCity = CityManager.GetAllByProId(proId);            int i = 0;            StringBuilder strJSON = new StringBuilder();            strJSON.Append("{\"city\":[");            foreach (City city in listCity)            {                if (i < (listCity.Count - 1))                {                    strJSON.Append("{");                    strJSON.Append("\"id\":");                    strJSON.Append(Convert.ToInt32(city.CityId));                    strJSON.Append(",");                    strJSON.Append("\"name\":\"");                    strJSON.Append(city.CityName);                    strJSON.Append("\"},");                }                if (i == (listCity.Count - 1))                {                    strJSON.Append("{");                    strJSON.Append("\"id\":");                    strJSON.Append(Convert.ToInt32(city.CityId));                    strJSON.Append(",");                    strJSON.Append("\"name\":\"");                    strJSON.Append(city.CityName);                    strJSON.Append("\"}");                }                i++;            }                        strJSON.Append("]}");            context.Response.Write(strJSON.ToString());        }    }ashx 文件 与js文件数据交互,布布扣,bubuko.com
标签:http os io 文件 for 数据 ar div
原文地址:http://www.cnblogs.com/jf-guo/p/3927378.html