Question

我们非常简单的模型：

public class OrderSubmissionProductViewModel
{
    public int Id { get; set; }
    public decimal Price { get; set; }
    public int Qty { get; set; }
}

public class OrderSubmissionViewModel
{
    public int CustomerId { get; set; }
    public int AccountId { get; set; }

    public OrderSubmissionProductViewModel[] Products { get; set; }
}

AJAX：

$.ajax({
    url: self.urlSubmitOrder,
    data: JSON.stringify({ submission: submission }),
    type: 'POST',
    success: function () { alert("Submitted"); },
    fail: function () { alert("Failed"); }
});

MVC控制器具有此方法签名：

public ActionResult SubmitAdminOrder(OrderSubmissionViewModel submission)
{ ... }

这就是POST的样子：

{"submission":{"CustomerId":43,"AccountId":"20000","Products":[{"Id":4,"Price":100,"Qty":1},{"Id":6,"Price":14,"Qty":1}]}}

我可以在控制器方法中遇到断点，并且模型不为null，但它的所有属性都是默认值。它没有被正确绑定。我究竟做错了什么？

我们正在使用ASP.Net MVC 4.

Answer 1

确保submission对象不是空的，您可以尝试在ajax选项中添加contentType吗？

$.ajax({
    url: self.urlSubmitOrder,
    data: JSON.stringify({ submission: submission }),
    type: 'POST',
    contentType: "application/json; charset=utf-8",
    success: function () { alert("Submitted"); },
    fail: function () { alert("Failed"); }
});

或者看一下这篇文章Pass viewmodel with two objects to controller using Json

将Ajax数据转换为MVC模型

1 个答案: