IEnumerable模型中的多个下拉列表

我正在用ASP开发一个小调查。NET MVC。我创建了我的模型问题、问题类别、回答、回答类别,并用种子数据填充它们。

问题模型的索引视图工作得很好,但我需要添加一个额外字段,该字段将包含每个问题的下拉列表,用户可以使用下拉列表中选择的选项回答问题。

下面是我的问题模型

public class Question
{
    [Key]
    public byte Id { get; set; }
    [Required]
    [Display(Name = "Survey Question")]
    public string SurveyQuestion { get; set; }
    public QuestionCategory QuestionCategory { get; set; }
    [Display(Name = "Question Category")]
    public byte QuestionCategoryId { get; set; }             
}

public class QuestionCategory
{
    public byte Id { get; set; }
    public string QuestionCat { get; set; }
}

这是响应模型

public class Response
{
    public byte Id { get; set; }
    public string ResponseName { get; set; }
    public byte Weight { get; set; }
    public ResponseCategory ResponseCategory { get; set; }
    public byte ResponseCategoryId { get; set; }
}

public class ResponseCategory
{
    public byte Id { get; set; }
    public string ResponseCat { get; set; }
}

    public ActionResult Index()
    {
        var questions = _context.Question.Include(q => q.QuestionCategory).ToList();
        return View(questions);
    }

最后,下面是显示问题的视图

@model IEnumerable<WorkPlaceBullying.Models.Question>
@{
    ViewBag.Title = "Survey Questions";
    Layout = "~/Views/Shared/_Layout.cshtml";
}

<h2>Questions</h2>
@if (!Model.Any())
{
    <p>We don't have any Questions yet!.</p>
}

@Html.ActionLink("Question", "New", "Question", "", new { @class = "btn btn-primary" })

<table class="table table-striped table-hover ">
    <thead>
        <tr>
            <td>ID</td>
            <td>Questions</td>
            <td>Response Category</td>
        </tr>
    </thead>
    @foreach (var question in Model)
    {
        <tr>
            <td>@question.Id</td>
            <td>
                @Html.ActionLink(@question.SurveyQuestion, "Edit", "Question", new { id = @question.Id }, null)
            </td>
            <td>
                @question.QuestionCategory.QuestionCat
            </td>
            <td>               
                @*@Html.DropDownListFor(q => q.Question.QuestionCategoryId, new SelectList(Model.QuestionCategory, "Id", "QuestionCat"), "Select Question Category", new { @class = "form-control" })*@
            </td>
        </tr>
    }
</table>

我似乎无法在dropdownlist中找到问题控制器索引视图中的答案。我们将不胜感激。