Question

如何使用BeginCollectionItem绑定嵌套列表（Parent，Children，Grand children）？我能够绑定父和子，但是Grand Children集合是0.在FireBug上，我能够看到SurveyAnswers（大孩子），但由于某种原因，他们没有绑定到SurveyQuestions（Answers的父级）。 Survey是SurveyQuestions的父母。

创建视图

@model Survey

@using (Html.BeginForm("Create", "Home", FormMethod.Post, new { id = "requestTypeForm" }))
{
    @Html.AntiForgeryToken()
    @Html.Partial("_RequestTypeForm", Model)
}

_RequestTypeForm Partial View

@model Survey

@using (Html.BeginForm(null, null, FormMethod.Post))
{
    @Html.TextBoxFor(model => model.Name)

    <div id="questions"></div>
    <button id="btnAddQuestion" type="button" />
}

_questionForm Partial View

@model SurveyQuestion

@using (Html.BeginCollectionItem("SurveyQuestions"))
{
    @Html.TextBoxFor(model => model.Question)
    <div id="answers"></div>
    <button id="btnAddAnswerToQuestion" type="button" />
}

_answerForm部分视图

@model SurveyAnswer

@using (Html.BeginCollectionItem("SurveyAnswers"))
{
    @Html.TextBoxFor(model => model.Answer)
}

制作行动

    public ActionResult Create()
    {
        var model = Survey.New();
        return View(model);
    }

问题部分查看操作

  public PartialViewResult CreateSurveyQuestionView()
  {
      return PartialView("_questionForm", SurveyQuestion.New(true)); // Marking as child
  }

回答部分查看操作

  public PartialViewResult CreateSurveyAnswerView()
  {
      return PartialView("_answerForm", SurveyAnswer.New(true)); // Marking as child
  }

创建后期操作

[HttpPost]
public ActionResult Create(Survey request)
{
    request.Save();
}

如何使用BeginCollectionItem绑定Parent和Grand子节点？

0 个答案: