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  • C#中利用jQuery获取Json值示例,Ajax方式。

    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title>jQueryAjaxJson取值示例</title>
        <script type="text/javascript" src="Scripts/jquery-1.4.4.min.js"></script>
        <script type="text/javascript">
            $(document).ready(function () {
                $("#Button1").click(function () {
                    $.ajax({
                        url: 'AjaxQuery.aspx',
                        type: 'GET',
                        dataType: 'json',
                        timeout: 1000,
                        cache: false,
                        beforeSend: LoadFunction, //加载执行方法
                        error: erryFunction,  //错误执行方法
                        success: succFunction //成功执行方法
                    })
                    function LoadFunction() {
                        $("#ddd").html('加载中...');
                    }
                    function erryFunction() {
                        alert("error");
                    }
                    function succFunction(tt) {
                        $("#ddd").html('');
                        var json = eval(tt); //数组                
                        $.each(json, function (index, item) {
                            //循环获取数据
                            var name = json[index].Name;
                            var age = json[index].Age;
                            var sex = json[index].Sex;
                            $("#ddd").html($("#ddd").html() + "<br>" + name + " - " + age + " - " + sex + "<br/>");
                        });
                    }
                });
            })
        </script>
    </head>
    <body>
        <input type="button" id="Button1" value="获取json数据" />
        <span id="ddd"></span>
    </body>
    </html>
    //Ajax Post Text
    function savedata(tempid) {
        var tid = $('#hidtemplate').attr('value');
        var desc = $("#contentdiv").html();
        var num_iid = $("#num_iidArr").attr('value');
        var num_iid2 = $("#num_iidArr001").attr('value'); //发布页面
        var topsvalue = $("#tops").attr('value');
        if (num_iid != "" && num_iid2 != "") {
            $.ajax({
                url: 'TabBaoHandler.ashx',
                type: 'POST',
                data: 'type=3&num_iid=' + num_iid2 + '&tid=' + tid + '&desc=' + desc + '&top_session=' + topsvalue,
                dataType: 'text',
                timeout: 20000,
                cache: false,
                //async: false, //同步
                beforeSend: LoadFunction, //加载执行方法  
                error: erryFunction,  //错误执行方法  
                success: succFunction //成功执行方法  
            })
            function LoadFunction() {
                showLoad("正在运行中...");
            }
            function erryFunction() {
                $("#contentdiv").html("<p style=\"padding:5px\"><img src=\"images/error.png\" />sorry,提交失败</p>");
                closeLoad();
            }
            function succFunction(tt) {
                closeLoad();
                $("#contentdiv").show().html(tt);
            }
        } else {
            alert("请选择后再操作");
        }
    }

    using System;
    //新增
    using System.Web.Script.Serialization;
    using System.Collections.Generic;
    
    public partial class AjaxQuery : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                List<Student> list = new List<Student>();
                Student c = new Student();
                c.Name = "张三";
                c.Age = 23;
                c.Sex = "男";
                list.Add(c);
                Student cc = new Student();
                cc.Name = "李四";
                cc.Age = 25;
                cc.Sex = "男";
                list.Add(cc);
                Student ccc = new Student();
                ccc.Name = "李玲";
                ccc.Age = 25;
                ccc.Sex = "女";
                list.Add(ccc);
                Response.ContentType = "application/json";
                Response.Write(new JavaScriptSerializer().Serialize(list));////这个很关键,否则error
                Response.End();
            }
        }
        public struct Student
        {
            public string Name;
            public int Age;        
            public string Sex;
        }
    }

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  • 原文地址:https://www.cnblogs.com/smartsmile/p/6234445.html
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