在一個控制器中返回兩組動作

Question

所以我在做的是我在頁面中顯示一個類別列表，每個類別都包含一個類別子列表。我有一個控制器，它返回沒有子類別列表的類別列表。我怎樣才能得到從使用相同的控制器顯示子列表。

控制器：

public CourseIndexVw Get(int id) 
    { 
     var _types = new ElementTypesService().GetElementModelsForCourseIndex(id, WebSecurity.CurrentUserId); 
     var _courseIndexbyTypesVw = new CourseSectionsControllerHelper().CourseIndexTypeVw(id); 
     _courseIndexbyTypesVw.Types = _types.ToList(); 
     var _activeType = _courseIndexbyTypesVw.Types.First(); 
     _courseIndexbyTypesVw.ActiveId = _activeType != null ? _activeType.Id : -1; 
     return _courseIndexbyTypesVw; 
    } 

GetElementModelsForCourseIndex：

public List<ElementModelForCourseIndex> GetElementModelsForCourseIndex(int elementId, int userId, int depthLevel = 2) 
     { 
      List<ElementModelForCourseIndex> TypesName; 
      ElementType type; 
      using (var db = DataContextManager.AleStoredProcsContext) 
      { 

       TypesName = db.GetElementModelsForCourseIndex<ElementModelForCourseIndex>(elementId, userId, r => new ElementModelForCourseIndex{ 
         Id = ElementsModelsForCourseIndexMap.Id(r), 
         Identity = ElementsModelsForCourseIndexMap.Identity(r) 
        }).OrderBy(n=>n.Identity).ToList(); 
      } 
      foreach (ElementModelForCourseIndex typeContent in TypesName) 
      { 
       typeContent.Children = GetElementChildrenModelsForCourseIndex(elementId, userId, type.ModelId, depthLevel); 
      } 
     } 

GetElementChildrenModelsForCourseIndex：

public List<ElementModelForCourseIndex> GetElementChildrenModelsForCourseIndex(int elementId, int userId, ElementType typeId, int depthLevel = 2) 
    { 
     using (var db = DataContextManager.AleStoredProcsContext) 
     { 
      return db.GetElementWithCalendarAndPermsByModel<ElementModelForCourseIndex>(elementId, userId, typeId.Id, r => new ElementModelForCourseIndex 
      { 
       IdentityName = ElementsModelsForCourseIndexMap.IdentityName(r), 
       ValueString = ElementsModelsForCourseIndexMap.ValueString(r), 
       TimeReleased = ElementsModelsForCourseIndexMap.TimeReleased(r), 
       TimeDue = ElementsModelsForCourseIndexMap.TimeReleased(r) 
      }).OrderBy(i => i.IdentityName).ToList(); 
     } 
    } 

UPDATE 當前問題與typeContent.Children = GetElementChildrenModelsForCourseIndex(elementId, userId, type.ModelId, depthLevel);我得到的錯誤是：重寫方法有無效的參數 任何幫助表示讚賞，如果我缺少任何信息讓我知道。謝謝！

Answer 1

您可以修改你的模型，並添加children屬性：

public class ElementModelForCourseIndex 
{ 
    // *snip* your code 
    public List<ElementModelForCourseIndex> Children {get; set;} 
} 

您既可以在您當前GetElementModelsForCourseIndex或使用你喜歡這個helper方法獲得它：

public List<ElementModelForCourseIndex> GetElementModelsForCourseIndex(int elementId, int userId, int depthLevel = 2) 
    { 
     List<ElementModelForCourseIndex> courses; 
     using (var db = DataContextManager.AleStoredProcsContext) 
     { 
      courses = db.GetElementModelsForCourseIndex<ElementModelForCourseIndex>(elementId, userId, r => new ElementModelForCourseIndex{ 
        Id = ElementsModelsForCourseIndexMap.Id(r), 
        Identity = ElementsModelsForCourseIndexMap.Identity(r) 
       }).OrderBy(n=>n.Identity).ToList(); 
     } 
     for each(ElementModelForCourseIndex course in courses) 
     { 
      // here you are filling the Children. 
      //You need to check if the parameters are the correct ones. 
      // Since you haven't shown the actual model class, I'm only guessing the parameters 
      course.Children = GetElementChildrenModelsForCourseIndex(elementId, userId, depthLevel); 
     } 
     return courses; 
    }