C# Asp.net MVC Razor如何显示两个模型字段的分组单选按钮

C# Asp.net MVC Razor如何显示两个模型字段的分组单选按钮,c#,asp.net-mvc,asp.net-mvc-3,asp.net-mvc-4,razor,C#,Asp.net Mvc,Asp.net Mvc 3,Asp.net Mvc 4,Razor,我有一个简单的测验模型,我试图让用户在强类型视图中从两个单选按钮(分组)中选择正确答案/备选答案。但是我使用的lambda表达式不起作用。我有两个空白单选按钮。我在这里和网上研究了几个问题,但我的模型是IList,我找不到合适的例子。我发现的所有示例都适用于非IList 这是我的模型 型号: public partial class Question { public int QuestionID { get; set; } public string Q

我有一个简单的测验模型,我试图让用户在强类型视图中从两个单选按钮(分组)中选择正确答案/备选答案。但是我使用的lambda表达式不起作用。我有两个空白单选按钮。我在这里和网上研究了几个问题,但我的模型是IList,我找不到合适的例子。我发现的所有示例都适用于非IList

这是我的模型

型号:

public partial class Question
    {
        public int QuestionID { get; set; }
        public string QuestionBody { get; set; }
        public string CorrectAnswer { get; set; }
        public string AlternativeAnswer { get; set; }           
    }
  @model IList<Quiz.Models.Question>                                

 <h2>Welcome to the Quiz</h2>
  @Html.BeginForm(method:FormMethod.Post,controllerName:"Home",actionName:"index")
    {
        @foreach (var questions in Model)
        {

        <p>@questions.QuestionBody</p>  

        @* How to display the CorrectAnswer and AlternativeAnswer
           as two radio buttons grouped here? I will be posting the selected value back
        }
我的控制器

public ActionResult Index()
        {
            QuizSimpleEntities quizEntities = new QuizSimpleEntities();
            var questions = from p in quizEntities.Questions
                            select p;

            return View(questions.ToList());

        }
我的型号:

public partial class Question
    {
        public int QuestionID { get; set; }
        public string QuestionBody { get; set; }
        public string CorrectAnswer { get; set; }
        public string AlternativeAnswer { get; set; }           
    }
  @model IList<Quiz.Models.Question>                                

 <h2>Welcome to the Quiz</h2>
  @Html.BeginForm(method:FormMethod.Post,controllerName:"Home",actionName:"index")
    {
        @foreach (var questions in Model)
        {

        <p>@questions.QuestionBody</p>  

        @* How to display the CorrectAnswer and AlternativeAnswer
           as two radio buttons grouped here? I will be posting the selected value back
        }
@model-IList
欢迎参加测验
@BeginForm(方法:FormMethod.Post,controllerName:“Home”,actionName:“index”)
{
@foreach(模型中的var问题)
{
@问题。问题正文

@*如何显示正确答案和备选答案 作为两个单选按钮分组在这里?我将张贴所选的值回来 }
}


谢谢

您需要在视图模型上设置一个属性,以便在发布表单时保存所选答案:

public partial class Question
{
    public int QuestionID { get; set; }
    public string QuestionBody { get; set; }
    public string CorrectAnswer { get; set; }
    public string AlternativeAnswer { get; set; }           

    public string SelectedAnswer { get; set; }
}
然后简单地循环模型的元素并生成所需的标记:

@model IList<Quiz.Models.Question>                                

<h2>Welcome to the Quiz</h2>
@Html.BeginForm( method:FormMethod.Post, controllerName:"Home", actionName:"index")
{
    @for (var i = 0; i < Model.Count; i++)
    {
        @Html.HiddenFor(x => x[i].QuestionID)
        <fieldset>
            <legend>
                @Html.DisplayFor(x => x[i].QuestionBody)
            </legend>
            <ul>
                <li>
                    @Html.HiddenFor(x => x[i].CorrectAnswer)
                    @Html.RadioButtonFor(x => x[i].SelectedAnswer, Model[i].CorrectAnswer)
                    @Html.DisplayFor(x => x[i].CorrectAnswer)
                </li>
                <li>
                    @Html.HiddenFor(x => x[i].AlternativeAnswer)
                    @Html.RadioButtonFor(x => x[i].SelectedAnswer, Model[i].AlternativeAnswer)
                    @Html.DisplayFor(x => x[i].AlternativeAnswer)
                </li>
            </ul>
        </fieldset>
    }

    <button type="submit">OK</button>
}
@model-IList
欢迎参加测验
@BeginForm(方法:FormMethod.Post,controllerName:“Home”,actionName:“index”)
{
@对于(var i=0;ix[i].QuestionID)
@DisplayFor(x=>x[i].QuestionBody)
  • @Html.HiddenFor(x=>x[i].CorrectAnswer) @Html.RadioButton(x=>x[i]。选择回答,型号[i]。正确答案) @DisplayFor(x=>x[i].CorrectAnswer)
  • @Html.HiddenFor(x=>x[i].AlternativeAnswer) @Html.RadioButton(x=>x[i]。选择回答,模型[i]。备选回答) @DisplayFor(x=>x[i].AlternativeAnswer)
} 好啊 }

注意:提交表单时,POST操作可能会采用
IList
模型,在该模型中,您将获得每个问题的答案(在
SelectedAnswer
属性中)。

我不明白您为每个单选按钮添加的隐藏字段的用途。有记录吗?