MVC JsonResult 无法对 null 引用执行运行时绑定

Question

datagridjsonmvc

Answer 1

    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

Answer 2

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”

Answer 3

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