单选按钮/复选框数组不显示保存的值

本文关键字：保存 显示 复选框 数组 单选按钮 | 更新日期: 2023-09-27 18:12:14

For循环post到db工作正常。从保存在模型中的bool属性中检索值也可以工作。但是，当用户进入编辑时，视图不会显示数组中保存的值。所以问题是将保存的布尔值绑定到数组。

 @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" })
    }

我通过我的视图模型访问问题和答案库:

 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);
        }

单选按钮/复选框数组不显示保存的值

解决!问题是我没有正确地收回响应。为了解决这个问题，我将appId和questionId传递到我的响应模型中，并在那里设置值。

仍然需要一些重构，但要点如下:

    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();
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