Question

我将来自每月364天数据的列表集合进行分组，然后使用foreach进行循环。然后我使用GroupBy按月对它们进行分组。分组后，他们将分组12个月，并在一个月内列出30天。但是我的问题是如何将12个月存储在一个列表中？

var inventories = new List<Month>
{
    new Month { Id = 0, Name = "JAN", Inventories = new List<Inventory> { new Inventory { Id = 1, Name = "Can", Description = "Can Description" } } },
    new Month { Id = 1, Name = "FEB", Inventories = new List<Inventory> { new Inventory { Id = 1, Name = "Can", Description = "Can Description" } } },
    new Month { Id = 2, Name = "MAR", Inventories = new List<Inventory> { new Inventory { Id = 1, Name = "Can", Description = "Can Description" } } },
    new Month { Id = 3, Name = "APR", Inventories = new List<Inventory> { new Inventory { Id = 1, Name = "Can", Description = "Can Description" } } },
    new Month { Id = 4, Name = "MAY", Inventories = new List<Inventory> { new Inventory { Id = 1, Name = "Can", Description = "Can Description" } } },
    new Month { Id = 5, Name = "JUN", Inventories = new List<Inventory> { new Inventory { Id = 1, Name = "Can", Description = "Can Description" } } },
    new Month { Id = 6, Name = "JUL", Inventories = new List<Inventory> { new Inventory { Id = 1, Name = "Can", Description = "Can Description" } } },
    new Month { Id = 7, Name = "AUG", Inventories = new List<Inventory> { new Inventory { Id = 1, Name = "Can", Description = "Can Description" } } },
    new Month { Id = 8, Name = "SEP", Inventories = new List<Inventory> { new Inventory { Id = 1, Name = "Can", Description = "Can Description" } } },
    new Month { Id = 9, Name = "OCT", Inventories = new List<Inventory> { new Inventory { Id = 1, Name = "Can", Description = "Can Description" } } },
    new Month { Id = 10, Name = "NOV", Inventories = new List<Inventory> { new Inventory { Id = 1, Name = "Can", Description = "Can Description" } } },
    new Month { Id = 12, Name = "DEC", Inventories = new List<Inventory> { new Inventory { Id = 1, Name = "Can", Description = "Can Description" }} },
};

var list = new List<Collection<Month>>();

// Currently I have 12 months that has a Inventories per month.
foreach (var month in inventories) 
{
    // Just store the 12 months in a single List<T>
    // Example: [0] -> [12] - > [30] and so on.
}



class Month
{
    public int Id { get; set; }
    public string Name { get; set; }

    public List<Inventory> Inventories { get; set; }
}

class Inventory
{
    public int Id { get; set; }
    public string Name { get; set; }
    public string Description { get; set; }
}

Answer 1

这个问题尚不明确，但我认为您可以尝试使用此模型，而不是使用两个模型，而是可以通过分层实现的。

    public class Inventory 
    {
        public Inventory()
        {
           MonthList = new List<Month>();
        }
        public int Id { get; set; }
        public string Name { get; set; }
        public string Description { get; set; }
        public List<Month> MonthList {get; set;} 
    }

    public class Month
    {
        public Month()
        {
           DayList = new List<Day>();
        }
        public int Id { get; set; }
        public string Name { get; set; }
        public string Description { get; set; }
        public List<Day> DayList {get; set;} 
    }

    List<Inventory> inventoryList = new List<Inventory>()
    {
       new Inventory()
       { 
           Id = 1,
           Name = "test", 
           Description = "desc.",
           MonthList = new List<Month>()
           {
              Id = 1, 
              Name = "test", 
              Description = "desc.",
              DayList = new List<Day>(){...}
           }
        }
     }

迭代结果

foreach(Inventory inv in inventoryList) //--> inv will be contains more than 3 list
{
   inv.MonthList.... //--> it will be contains 12 months
   foreach(Month month in inv.MonthList)
   {
      month.DayList... //--> will be contains 30 days
   }
}

如何将IGrouping <int，object =“”>的列表存储到单个List <t>？

1 个答案: