Asp.net mvc Json字符串列表为空

Asp.net mvc Json字符串列表为空,asp.net-mvc,json,http-post,Asp.net Mvc,Json,Http Post,我正在将一个json字符串集合从Android设备传递到.net MVC HttpPost方法。我的json字符串类似于 {"collection",[{"Name":"A","Age":"12","Class":"10"},{"Name":"B","Age":"12","Class":"10"}]} 我的MVC控制功能是: [HttpPost] public ActionResult Create(string[] collection) { try

我正在将一个json字符串集合从Android设备传递到.net MVC HttpPost方法。我的json字符串类似于

{"collection",[{"Name":"A","Age":"12","Class":"10"},{"Name":"B","Age":"12","Class":"10"}]}
我的MVC控制功能是:

  [HttpPost]
    public ActionResult Create(string[] collection)
    {
        try
        {
            // TODO: Add insert logic here
            JavaScriptSerializer json_serializer = new JavaScriptSerializer();
            List<Model.StudentBehaviour> stdbehaviour_list = Newtonsoft.Json.JsonConvert.DeserializeObject<List<Model.StudentBehaviour>>(collection);
            Lib.StudentModule.StudentManager.InsertStudentBehaviours(stdbehaviour_list);               
            return Json("success", JsonRequestBehavior.AllowGet);
        }
        catch
        {
            return Json("exception", JsonRequestBehavior.AllowGet);
        }
    }
集合中的预期值为

collection[0] 
Name = A 
Age = 12
Class = 10
collection[1] 
Name = B 
Age = 12
Class = 10
请帮助解决此问题


提前感谢

ASP.NET MVC具有ModelBinding的概念。这意味着,如果向操作方法添加参数,MVC将尝试用您发送的数据填充这些参数

这意味着您可以将代码更改为:

 // Example of your Student class. 
 // Make sure that all properties you want to bind to are public
 public class Student
 {
     public string Name { get; set; }
     public int Age { get; set; }
     public int Class { get; set; }
 }

// Example of an Action method. Note that instead of taking a string as parameter,
// you just accept a collection of Student objects.
[HttpPost]
public JsonResult Create(List<Student> collection)
{
    if (ModelState.IsValid)
    {
        return Json("success", JsonRequestBehavior.AllowGet);
    }
    else
    {
        return Json("exception", JsonRequestBehavior.AllowGet);
    }
}

谢谢Wouter de Kort,我将尝试这种方法,我有一个快速的问题要问你,参数名和Json键应该相同吗?例如:如果我通过{“详细信息”:[{“姓名”:“A”,“年龄”:“12”,“班级”:“10”},{“姓名”:“B”,“年龄”:“12”,“班级”:“10”}]。但是我的HttpPost函数参数名是collection。这会产生任何问题吗?是的,它们应该是相同的。ModelBinding用于将参数名与请求中找到的数据相匹配。您好Wouter de Kort,我实现了您给定的代码。但仍然得到null。我在Global.ascx.Hi中必须做的任何事情都会得到值,如果我有s单个对象,如{“collection”、{“Name”:“A”、“Age”:“12”、“Class”:“10”}。但是如果使用am list,则会得到一个空对象。您不必在global.ascx中更改任何内容。我已在一个新的默认MVC项目中测试了此代码。如果将参数类型从list更改为string并发送多个对象,您会得到什么?
 // Example of your Student class. 
 // Make sure that all properties you want to bind to are public
 public class Student
 {
     public string Name { get; set; }
     public int Age { get; set; }
     public int Class { get; set; }
 }

// Example of an Action method. Note that instead of taking a string as parameter,
// you just accept a collection of Student objects.
[HttpPost]
public JsonResult Create(List<Student> collection)
{
    if (ModelState.IsValid)
    {
        return Json("success", JsonRequestBehavior.AllowGet);
    }
    else
    {
        return Json("exception", JsonRequestBehavior.AllowGet);
    }
}
function sendData() {    
        var data = [{ 'Name': 'A', 'Age': '12', 'Class': '10' },
            { 'Name': 'B', 'Age': '12', 'Class': '10' }];

        var collection = JSON.stringify(data);

        $.ajax({
            url: "Home/Create",
            type: "POST",
            data: collection,
            dataType: 'json',
            contentType: 'application/json; charset=utf-8',
        }).done(function (msg) {
            alert("Data Saved: " + msg);
        });
    }