controller 中定义以下方法:
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{
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;
}
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页面调用:
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<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>
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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。
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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 ; }
}
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页面方法:
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<p>
<a href= "javascript:void(0)" onclick= "javascript:getJsonData();" >GetJsonData</a>
</p>
<div id= "dataDiv" >
ggg
</div>
<script type= "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>
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显示结果:
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://blog.csdn.net/weizengxun/article/details/6845455