集團通過與單一的LINQ

Question

外鍵我有2個相關的表，他們是

附表

SlotId 
Description 
Amount 

和插槽

Id 
Name 

示例數據：

附表

slotid description amount 
-------------------------------- 
    1  Morning charge 300 
    1  Late fee   300 
    1  Earlier bonus 200 
    1  Half day   150 
    2  Morning charge 300 
    2  Late fee   300 
    2  Earlier bonus 200 
    2  Half day   150 
    3  Morning charge 300 
    3  Late fee   300 
    3  Earlier bonus 200 
    3  Half day   150 

最終結果要作爲SlotSchedules列表，像這樣：

SlotId 
    SlotName 
    List<Schedules> 

我需要：

• 牽強時刻表
• 後的列表中找到在不同的時隙它
• ，然後通過每個s迭代很多和建設，我需要如下

這是我試圖與LINQ模型：

List<Schedules> schedulesAll = (from n in dbContext.Schedules         
            select n).ToList(); 

    var slotsdistinct = schedulesAll.Select(x => x.SlotId).Distinct().ToList(); 

    foreach (var slot in slotsdistinct) 
    { 
     var scheduledforslot = schedulesAll.Where(x => x.SlotId == slot).Select(x => x).ToList(); 

     foreach (Schedules _schedule in scheduledforslot) 
     { 
      //ListModel.Add(new DetailsModel { Name = _schedule.Description, Amount = (_schedule.Amount }); 
     } 
    } 

任何方式使其在單LINQ查詢？

Answer 1

試試這個：

var slotsSchedules = dbContext.Slots.ToList().Select(slot => new { 
         SlotID = slot.Id, 
         Name = slot.Name, 
         SlotSchedules = dbContext.Schedules.ToList() 
             .Where(schedule = > schedule.SlotId == slot.Id).ToList()});