MVC JsonResult 无法对 null 引用执行运行时绑定

[低调的感觉]

代码一：

return Json(new datagrid
            {
                total = 3,
                rows = result.MerchantQualities.Select(s => new
                {
                    MerchantGroup = s.MerchantGroup.ToString(),
                    Installation = s.Installation,
                    Registeration = s.Registeration,
                    Deposit = s.Deposit,
                    Consumption = s.Consumption,
                    StartupApp = s.StartupApp,
                    ConsumptionAmount = s.ConsumptionAmount
                }),
                footer =
                {
                    MerchantGroup = "",
                    Installation = 0,
                    Registeration = 0,
                    Deposit = 0,
                    Consumption = 0,
                    StartupApp = 0,
                    ConsumptionAmount = 0
                }
            });

代码二：

return Json(new datagrid
            {
                total = 3,
                rows = result.MerchantQualities.Select(s => new
                {
                    MerchantGroup = s.MerchantGroup.ToString(),
                    Installation = s.Installation,
                    Registeration = s.Registeration,
                    Deposit = s.Deposit,
                    Consumption = s.Consumption,
                    StartupApp = s.StartupApp,
                    ConsumptionAmount = s.ConsumptionAmount
                })
            });

MVC里面，代码1 就是多了一个“footer”节点
然后就报错了：无法对 null 引用执行运行时绑定
为什么？

[低调的感觉]

    public class datagrid
    {
        /// <summary>
        /// 总数
        /// </summary>
        public int total;
        /// <summary>
        /// 行数据集
        /// </summary>
        public dynamic rows;
        /// <summary>
        /// 汇总集
        /// </summary>
        public dynamic footer;
    }

这是自定义的一个类

[低调的感觉]

自己已经解决： footer = new { MerchantGroup = sumText, Installation = result.MerchantQualities.Sum(s => s.Installation), Registeration = result.MerchantQualities.Sum(s => s.Registeration), Deposit = result.MerchantQualities.Sum(s => s.Deposit), Consumption = result.MerchantQualities.Sum(s => s.Consumption), StartupApp = result.MerchantQualities.Sum(s => s.StartupApp), ConsumptionAmount = result.MerchantQualities.Sum(s => s.ConsumptionAmount) } 掉了“new”

[低调的感觉]

本问题已经自行解决。。。我需要结贴 谁来顶一下 。。。

[sealovesky99]

好的 我也已经解决了

[sealovesky99]

M_Shop shop = db.Shops.Find(ShopCD); return Json(shop); 好吧 后面看看还是没有解决