單選按鈕/複選框數組不顯示保存的值

Question

對於循環發佈到數據庫工作正常。從模型中保存的bool屬性中檢索值也起作用。但是，當用戶進行編輯時，視圖不會在數組中顯示保存的值。所以問題是將保存的布爾值綁定到數組。

@for (var i = 0; i < Model.Questions.Count; i++) 
    { 

      @Html.HiddenFor(m => m.Answers[i].QuestionID, new { id = Model.Questions[i].QuestionID }) 
      @Html.HiddenFor(m => m.Answers[i].ApplicationID, new { id = Model.ApplicationID }) 
      @Html.HiddenFor(m => m.Answers[i].QuestionText, new { id = Model.Questions[i].QuestionText }) 
      @Html.HiddenFor(m => m.Answers[i].QuestionCategoryID, new { id = Model.Questions[i].QuestionCategoryID }) 
      @Html.RadioButtonFor(model => model.Answers[i].ResponseBool, true) Yes 


    @Html.RadioButtonFor(model => model.Answers[i].ResponseBool, false) No 

     @Html.DisplayFor(model => model.Questions[i].QuestionText, new { @class = "col-md-2" }) 
    } 

我訪問的問題和回答通過我的視圖模型回購協議：

Questions = new QuestionRepository().GetStepOneQuestions(); 

     Answers = new ResponseRepository().GetStepOneResponses(stepOneSaved.ApplicationID) 
      .Select(k => new Response() 
      { 
       ApplicationID = stepOneSaved.ApplicationID, 
       QuestionID = k.QuestionID, 
       QuestionCategoryID = k.QuestionCategoryID, 
       QuestionText = k.QuestionText, 
       ResponseBool = k.ResponseBool 
      }) 
      .ToList(); 

控制器：

public ActionResult StepOne(int id) 
     { 
       var application = _applicationData.GetByID(id); 
       var form = _eduInfoData.GetByEdID(id); 

       var vm = new StepOneViewModel(application, form); 
        return View(vm); 
     } 

     [HttpPost] 
     [ValidateAntiForgeryToken] 
     public ActionResult StepOne(StepOneViewModel form) 
     { 
      try 
      { 
       var item = form.toEduInfo(); 
       if (ModelState.IsValid && _eduInfoData.TrySave(item)) 
       { 
        for (int i = 0; i < form.Answers.Count; i++) 
        { 
         _responseData.TrySave(form.ApplicationID, form.Answers[i]); 
        } 
        return RedirectToAction("StepTwo", new { id = item.ApplicationID }); 
       } 
      } 
      catch (DataException /* dex */) 
      { 
       ModelState.AddModelError(string.Empty, "Unable to save changes. Try again, and if the problem persists contact your system administrator."); 
      } 
      return View(form); 
     } 

Answer 1

解決了！問題是我沒有正確回退響應。爲了解決我傳入appId和questionId到我的響應模型中，並在那裏設置值。

仍然需要一些重新分解，但這裏是它的要點是：

public Response(int id, int qID) 
      { 
       this.ResponseBool = new ResponseRepository().GetResponse(id).Where(m => m.QuestionID == qID).Select(m => m.ResponseBool).FirstOrDefault(); 
    } 

     Answers = Questions 
        .Select(k => new Response(stepOneSaved.ApplicationID, k.QuestionID) 
        { 
         ApplicationID = stepOneSaved.ApplicationID, 
         QuestionID = k.QuestionID, 
         QuestionCategoryID = k.QuestionCategoryID, 
         QuestionText = k.QuestionText, 
        }) 
        .ToList();