C# Asp.net mvc中的嵌套Groupby函数

我有这个函数将JSON数据返回到我的视图

public JsonResult MeterReading()
    {
        db.Configuration.ProxyCreationEnabled = false;


        var queryNestedGroups =
    from s in db.Sales
    group s by s.PointId into newGroup1
    from newGroup2 in
        (from student in newGroup1
         group student by student.FuelTypeId into g
         select new
         {

             MeterReading = g.Sum(o => o.SaleQuantity),
             FuelType = db.zFuelTypes.Where(u => u.Id == g.Key).Select(p => p.FuelType).FirstOrDefault(),
             Point = db.DispensePoints.Where(u => u.Id == newGroup1.Key).Select(p => p.PointName).FirstOrDefault(),
             Picture=db.DispensePoints.Where(u => u.Id == newGroup1.Key).Select(p => p.Picture).FirstOrDefault()

         })
    group newGroup2 by newGroup1.Key;

        return Json(queryNestedGroups, JsonRequestBehavior.AllowGet);

    }
    

但它显示了这样的数据

[[{"MeterReading":677.00,"FuelType":"Petrol","Point":"wwwfhfghfgh","Picture":"~/Images/PointPicuters/637321819464806362a.png"},{"MeterReading":677.00,"FuelType":"GasLocal","Point":"wwwfhfghfgh","Picture":"~/Images/PointPicuters/637321819464806362a.png"}],[{"MeterReading":677.00,"FuelType":"Petrol_95","Point":"www","Picture":"~/Images/PointPicuters/63732163747332.jpg"}}]]

但我想要这种格式

[{"Point":"wwwfhfghfgh","Picture":"~/Images/PointPicuters/637321819464806362a.png",["MeterReading":677.00,"FuelType":"Petrol"],["MeterReading":677.00,"FuelType":"GasLocal"]},{"MeterReading":677.00,"FuelType":"Petrol_95",["Point":"www","Picture":"~/Images/PointPicuters/63732163747332.jpg"]}]

---

谢谢

我假设您的

db.Sales

数据如下：

List mySales=new List（）
{
新销售
{
Id=1，
PointName=“wwwfhfghfgh”，
Picture=“~/Images/PointPicuters/637321819464806362a.png”，
FullType=“汽油”，
销售数量=100.00米
},
新销售
{
Id=2，
PointName=“wwwfhfghfgh”，
Picture=“~/Images/PointPicuters/637321819464806362a.png”，
FullType=“汽油”，
销售数量=200.00米
},
新销售
{
Id=3，
PointName=“wwwfhfghfgh”，
Picture=“~/Images/PointPicuters/637321819464806362a.png”，
FullType=“GasLocal”，
销售数量=300.00米
},
新销售
{
Id=4，
PointName=“wwwfhfghfgh”，
Picture=“~/Images/PointPicuters/637321819464806362a.png”，
FullType=“GasLocal”，
销售数量=400.00米
},
新销售
{
Id=5，
PointName=“wwwfhfghfgh”，
Picture=“~/Images/PointPicuters/637321819464806362a.png”，
FullType=“汽油机”，
销售数量=500.00米
},
新销售
{
Id=6，
PointName=“wwwfhfghfgh”，
Picture=“~/Images/PointPicuters/637321819464806362a.png”，
FullType=“汽油机”，
销售数量=600.00米
},
新销售
{
Id=7，
PointName=“www”，
Picture=“~/Images/PointPicuters/6373216374732.jpg”，
FullType=“MyNewType”，
销售数量=10000.00米
},
新销售
{
Id=8，
PointName=“www”，
Picture=“~/Images/PointPicuters/6373216374732.jpg”，
FullType=“MyNewType”，
销售数量=20000.00米
}
};

术后2个月按手术分组

var queryGroupByFullType=来自mySales中的s
按s.FullType将s分组到新组1中
选择新的
{
MeterReading=newGroup1.Sum（x=>x.SaleQuantity），
PointName=newGroup1.First（）.PointName，
Picture=newGroup1.First（）.Picture，
FullType=newGroup1.Key
};
变量queryGroypByPointName=来自queryGroupByFullType中的s
按s.PointName将s分组到新组1中
选择新的
{
Point=newGroup1.Key，
Picture=newGroup1.First（）.Picture，
MyList=newGroup1。选择（x=>new
{
x、 计量读数，
x、 全型
})
};

json：

[
   {
      "point":"wwwfhfghfgh",
      "picture":"~/Images/PointPicuters/637321819464806362a.png",
      "myList":[
         {
            "meterReading":300.00,
            "fullType":"Petrol"
         },
         {
            "meterReading":700.00,
            "fullType":"GasLocal"
         },
         {
            "meterReading":1100.00,
            "fullType":"Petrol_95"
         }
      ]
   },
   {
      "point":"www",
      "picture":"~/Images/PointPicuters/63732163747332.jpg",
      "myList":[
         {
            "meterReading":30000.00,
            "fullType":"MyNewType"
         }
      ]
   }
]

---

所需的JSON无效。在JSON中，键值对不能直接位于数组内部（由

[]

表示）；它们必须位于对象中（由

{}

表示）。有关正确JSON构造的信息，请参阅。您可以使用来验证JSON。请编辑您的问题以包含正确的JSON。谢谢亲爱的，您救了我的命。@mustafateb如果这对您有帮助，请接受我最好的答案，谢谢~我从您的答案中了解到，当我将此用于您给定的列表时，它工作正常，但当我将其用于数据库表时，它只返回一条记录而不是全部，我不知道为什么