Question

我的代码遇到了一些问题，希望有人可以帮忙。这是我正在使用的片段：

[Authorize]
        public ActionResult EventResults(int id)
        {
            List<Event> CompetitionEvents = Event.getEventsByCompetitionId(id);
            ViewBag.CompetitionEvents = CompetitionEvents;
            List<Person> Competitors = Competition.getCompetitorsByCompetitionID(id);
            ViewBag.Competitors = Competitors;
            List<Results> Results = Competition.getCompetitorResultsPairings(CompetitionEvents, Competitors);
            ViewBag.Results = Results;
            ViewBag.OrganizerEmail = Competition.getCompetitionById(id).OrganizerEmail;
            return View();
        }
@model BINC.Models.Results
@using BINC.Models;
@{
    var eventList = ViewBag.CompetitionEvents as List<Event>;
    var competitorList = ViewBag.Competitors as List<Person>;
    var resultList = ViewBag.Results as List<Results>;
}
<h2></h2>
<p>Results:</p>
    @using (Html.BeginForm())
       {
            foreach (var evt in eventList)
            {
                <fieldset>
                    <legend>@evt.activity.Name</legend>
                   <p>Event Description:  @evt.activity.Description</p>
                   @foreach (var competitor in competitorList)
                   {
                       foreach (var result in resultList)
                       {
                           if (result.EventID == evt.id && result.CompetitorEmail == competitor.Email)
                           {
                               <p>Competitor:  @competitor.FirstName @competitor.LastName</p>
                               <p>Score:  @result.Score</p>
                               if (ViewBag.OrganizerEmail.Equals(@User.Identity.Name))
                               {
                                    @Html.LabelFor(model => model.Score, "New Score   ");
                                    @Html.TextBoxFor(model => model.Score, new { maxlength = 10, style = "width:125px" })
                                    <input type="submit" name="submitButton" value="Update" />
                               }
                           }
                       }
                   }
                </fieldset>
            }
       }
[HttpPost]
        public ActionResult EventResults(Results res)
        {
           //stuff
        }

我的问题只是在我的Results对象上设置了分数。例如，当我将值“15”放入文本框并单击“更新”时，我将结果模型对象传递给httppost方法，该方法除了“得分”字段之外，其余都设置为空输入

我是否过于复杂？有更简单的方法吗？

我尝试添加

@Html.HiddenFor(model => model.EventID);
@Html.HiddenFor(model => model.CompetitorEmail);

但这似乎没有任何帮助。

Answer 1

您有多个提交按钮，这可能是问题，这也不被视为良好做法

<input type="submit" name="submitButton" value="Update" />

在表单末尾只保留一个提交按钮

Answer 2

基本上 - 确保你将模型传递给view--并使用Html Helpers（即TextBoxFor（）和HiddenFor）

我不认为这是提交按钮的问题 - 但可能有帮助的一件事是将模型实际传递给视图。您正在使用ViewBag传递数据。将模型传递给View，您的Html Helpers应该生成正确的表单名称，以便模型绑定起作用。

[HttpPost]期间模型值为空

2 个答案: