如何使用 json 将复杂类型传递给 ASP.NET MVC 控制器

谢谢杰夫，这让我走上了正确的道路.DefaultModelBinder足够聪明，可以为我发挥所有的魔力...我的问题在于我的小部件类型.在我匆忙中，我的类型被定义为:

public class Widget
{
   public int Id;
   public string Name;
   public decimal Price;
}

请注意，该类型具有公共字段而不是公共属性.一旦我把它们改成了房产，它就成功了.以下是最终正确运行的源代码:

小装置.aspx:

<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" AutoEventWireup="true" CodeBehind="Widget.aspx.cs" Inherits="MvcAjaxApp2.Views.Home.Widget" %>
<asp:Content ID="Content1" ContentPlaceHolderID="MainContent" runat="server">
    <script src="../../Scripts/jquery-1.2.6.js" type="text/javascript"></script>   
    <script type="text/javascript"> 
    function SaveWidget()
    {
        var formData = $("#Form1").serializeArray();

        $.post("/Home/SaveWidget",
        formData,
        function(data){
            alert(data.Result);
        }, "json");
    }
    </script>
    <form id="Form1">
        <input type="hidden" name="widget.Id" value="1" />
        <input type="text" name="widget.Name" value="my widget" />
        <input type="text" name="widget.Price" value="5.43" />
        <input type="button" value="Save" onclick="SaveWidget()" />
    </form>
</asp:Content>

家庭控制器.反恐精英:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Mvc.Ajax;

namespace MvcAjaxApp2.Controllers
{
    [HandleError]
    public class HomeController : Controller
    {
        public ActionResult Index()
        {
            ViewData["Title"] = "Home Page";
            ViewData["Message"] = "Welcome to ASP.NET MVC!";
            return View();
        }

        public ActionResult About()
        {
            ViewData["Title"] = "About Page";
            return View();
        }

        public ActionResult Widget()
        {
            ViewData["Title"] = "Widget";
            return View();
        }

        public JsonResult SaveWidget(Widget widget)
        {
            // Save the Widget
            return Json(new { Result = String.Format("Saved widget: '{0}' for ${1}", widget.Name, widget.Price) });
        }
    }
    public class Widget
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public decimal Price { get; set; }
    }
}