我在将关联对象数组传递给MVC Controller时遇到问题。我总是得到null
。
这就是我在客户端所拥有的:
function Item() {
this.ItemId = GetRandomId('i');
this.Title = '';
this.Questions = [];
}
function Question() {
this.QuestionId = GetRandomId('q');
this.Description = '';
this.Values = [];
}
function QuestionValue() {
this.ValueId = GetRandomId('v');
this.Description = '';
this.IsCorrect = false;
}
我有一个数组'items'并且填充如下:
items['i123'] = new Item();
在服务器端,我映射了:
public class EvItemJs
{
public int ItemId { get; set; }
public string Title { get; set; }
public EvQuestionJs[] Questions { get; set; }
}
public class EvQuestionJs
{
public int QuestionId { get; set; }
public string Description { get; set; }
public EvQuestionValueJs[] Values { get; set; }
}
public class EvQuestionValueJs
{
public int ValueId { get; set; }
public string Description { get; set; }
public string IsCorrect { get; set; }
}
我的MVC控制器方法是:
[HttpPost]
public ActionResult Create(int userId, string userHash, EvItemJs[] items)
在客户端,我用这个调用MVC控制器:
var data = { userId: global_data.userId, userHash: global_data.userHash, items: items };
$.ajax({
url: '/Evaluations/Create',
type: "POST",
data: JSON.stringify(data),
dataType: "json",
contentType: "application/json; charset=utf-8",
async: true,
cache: false,
success: function (msg) {
},
error: function (data, ajaxOptions, thrownError) {
}
});
userId和userHash参数具有正确的值,但这些项始终为null。
任何人都知道出了什么问题?我尝试使用JSON.stringify
和$.toJSON
。我记得有时我用序列化做了这个,但我找不到它。
编辑:这是浏览器发送到服务器的内容:
答案 0 :(得分:0)
我解决了它将关联数组转换为非关联数组的问题:
function NormalizeItemsArray() {
var result = new Array();
for (var i in items) {
i = items[i];
var item = new Item();
item.ItemId = i.ItemId;
item.Title = i.Title;
item.Questions = new Array();
for (var q in i.Questions) {
q = i.Questions[q];
var question = new Question();
question.QuestionId = q.QuestionId;
question.Description = q.Description;
question.Values = new Array();
for (var v in q.Values) {
v = q.Values[v];
var questionValue = new QuestionValue();
questionValue.ValueId = v.ValueId;
questionValue.Description = v.Description;
questionValue.IsCorrect = v.IsCorrect;
question.Values.push(questionValue);
}
item.Questions.push(question);
}
result.push(item);
}
return result;
}
感谢大家!