mvc使用JsonResult返回Json数据(转)

controller 中定义以下方法：

public JsonResult UpdateSingle(int id, string actionName, string actionValue)
{
var res = new JsonResult();
//var value = "actionValue";
//db.ContextOptions.ProxyCreationEnabled = false;
var list = (from a in db.Articles
select new
{
name = a.ArtTitle,
yy = a.ArtPublishTime
}).Take(5);
//记得这里要select new 否则会报错：序列化类型 System.Data.Entity.DynamicProxies XXXXX 的对象时检测到循环引用。
//不select new 也行的加上这句 //db.ContextOptions.ProxyCreationEnabled = false;
res.Data = list;//返回列表
var name = "小华";
var age = "12";
var name1 = "小华";
var age1 = "12";
res.Data = new object[] { new { name, age }, new { name1, age1 } };//返回一个自定义的object数组
var person = new { Name = "小明", Age = 22, Sex = "男" };
res.Data = person;//返回单个对象；
res.Data = "这是个字符串";//返回一个字符串,意义不大；
res.JsonRequestBehavior = JsonRequestBehavior.AllowGet;//允许使用GET方式获取，否则用GET获取是会报错。
return res;
}

 public JsonResult UpdateSingle(int id, string actionName, string actionValue)
        {
            var res = new JsonResult();
            //var value = "actionValue";
            //db.ContextOptions.ProxyCreationEnabled = false;
            var list = (from a in db.Articles
                        select new
                        {
                            name = a.ArtTitle,
                            yy = a.ArtPublishTime
                        }).Take(5);
            //记得这里要select new 否则会报错：序列化类型 System.Data.Entity.DynamicProxies XXXXX 的对象时检测到循环引用。
            //不select new 也行的加上这句 //db.ContextOptions.ProxyCreationEnabled = false;
            res.Data = list;//返回列表

            var name = "小华";
            var age = "12";
            var name1 = "小华";
            var age1 = "12";
            res.Data = new object[] { new { name, age }, new { name1, age1 } };//返回一个自定义的object数组

            var person = new { Name = "小明", Age = 22, Sex = "男" };
            res.Data = person;//返回单个对象；

            res.Data = "这是个字符串";//返回一个字符串,意义不大；

            res.JsonRequestBehavior = JsonRequestBehavior.AllowGet;//允许使用GET方式获取，否则用GET获取是会报错。
            return res;
        }

页面调用：

<ahref="javascript:void(0);"onclick="javascript:upclick(this);">Click Me</a>
<scripttype="text/javascript">
function upclick(o) {
var obj = $(o);
alert(obj);
$.ajax({
url: "/Articles/UpdateSingle?ran=" + Math.random(),
type: "GET",
dataType: "json",
data: { id: obj.attr("id"), actionName: obj.attr("actionName"), actionValue: obj.attr("actionValue") },
success: function (data) {
// if (data.result == "True") {
// alert("修改成功！");
// }
// if (obj.attr("actionName") == "ArtVerify") {
// }
$(o).html(data[0].name);
obj.attr("actionValue", data[0].result);
}
})
}
</script>

<a href="javascript:void(0);" onclick="javascript:upclick(this);">Click Me</a>
<script type="text/javascript">
    function upclick(o) {
        var obj = $(o);
        alert(obj);
        $.ajax({        
            url: "/Articles/UpdateSingle?ran=" + Math.random(),
            type: "GET",
            dataType: "json",
            data: { id: obj.attr("id"), actionName: obj.attr("actionName"), actionValue: obj.attr("actionValue") },
            success: function (data) {
//                if (data.result == "True") {
//                    alert("修改成功！");
//                }
//                if (obj.attr("actionName") == "ArtVerify") {

//                }
                $(o).html(data[0].name);
                obj.attr("actionValue", data[0].result);
            }
        })
    }
</script>

以上是在mvc中使用，在webform中怎么使用呢？在webform中要引用Newtonsoft.Json.dll; 当然你也可以自己拼接字符串。

protectedvoid Page_Load(object sender, EventArgs e)
{
var customer = new customer { name = "李华", sex = "男" };
var customer1 = new customer { name = "小芳", sex = "女" };
var li = new List<customer>();
li.Add(customer);
li.Add(customer1);
var list = Newtonsoft.Json.JavaScriptConvert.SerializeObject(li);
var tt = "[{\"name\":\"李华\",\"sex\":\"男\"},{\"name\":\"小芳\",\"sex\":\"女\"}]";
//new Newtonsoft.Json.JsonSerializer()..(customer);
Response.Write(tt);
Response.End();
}
publicclass customer
{
publicstring name { get; set; }
publicstring sex { get; set; }
}

protected void Page_Load(object sender, EventArgs e)
        {
            var customer = new customer { name = "李华", sex = "男" };
            var customer1 = new customer { name = "小芳", sex = "女" };
            var li = new List<customer>();
            li.Add(customer);
            li.Add(customer1);
            var list = Newtonsoft.Json.JavaScriptConvert.SerializeObject(li);
            var tt = "[{\"name\":\"李华\",\"sex\":\"男\"},{\"name\":\"小芳\",\"sex\":\"女\"}]";
            //new Newtonsoft.Json.JsonSerializer()..(customer);
            Response.Write(tt);
            Response.End();
        }

        public class customer
        {
            public string name { get; set; }
            public string sex { get; set; }
        }

页面方法：

<p>
<ahref="javascript:void(0)"onclick="javascript:getJsonData();">GetJsonData</a>
</p>
<divid="dataDiv">
ggg
</div>
<scripttype="text/javascript">
function getJsonData() {
var str = "";
$.getJSON("/Json.aspx", function (data) {
var tt = "";
$.each(data, function (k, v) {
$.each(v, function (kk, vv) {
tt += kk + "：" + vv + "<br/>";
});
});
$("#dataDiv").html(tt);
});
}
</script>