无法获取窗体中的绑定对象

Question

在一个 ASP.NET 的MVC 4项目中，我创建了一个名为Task的模型类及其CRUD并在索引页中列出了我需要单独修改每一行的任务。所以我在每一行中创建一个表单。但是当我提交一行时，我在控制器的操作中没有得到对象任务。

这是代码：

谢谢

控制器

public ActionResult Index()
        {
            ViewBag.projectVersionList = this.getProjectVersionList();
            ViewBag.taskTypeList = this.getTaskTypeList();
            ViewBag.durationList = this.getDurationList();
            return View(db.Tasks.ToList());
        }
        [HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult Index(Task task)//task est instancié mais les propriétées sont vides
        {
            task.User = db.UserProfiles.Find(WebSecurity.CurrentUserId);
            if (ModelState.IsValid)
            {
                db.Entry(task).State = EntityState.Modified;
                db.SaveChanges();
            }
            return View(task);
        }

视图

@model IEnumerable<TimeSheet.Models.Task>
@{
    ViewBag.Title = "Index";
}
<h2>Index</h2>
<p>
    @Html.ActionLink("Create New", "Create")
</p>
    <div class="responsive-table-line">
    <table class="table table-striped" data-card-view="true">
        <thead>
            <tr>
                <th>
                    @Html.DisplayNameFor(model => model.Date)
                </th>
                <th>
                    @Html.DisplayNameFor(model => model.UserId)
                </th>
                <th>
                    @Html.DisplayNameFor(model => model.ProjectVersionId)
                </th>
                <th>
                    @Html.DisplayNameFor(model => model.TaskTypeId)
                </th>
                <th>
                    @Html.DisplayNameFor(model => model.Duration)
                </th>
                <th>
                    @Html.DisplayNameFor(model => model.Accomplished)
                </th>
                <th></th>
            </tr>
        </thead>
        <tbody>
            @foreach (var item in Model)
            {
               @Html.EditorFor(m => item)
            }
        </tbody>
    </table>
</div>

编辑器模板：

@model TimeSheet.Models.Task
@using (Ajax.BeginForm(new AjaxOptions
{
    HttpMethod = "POST"
}))
{
@Html.AntiForgeryToken()
<tr>
    <td data-title="@Html.DisplayNameFor(model => model.Date)">
        @Html.HiddenFor(m => m.TaskId)
        <div class="form-group">
            @Html.TextBoxFor(m => m.Date, new { @class = "datefield form-control", type = "date" })
        </div>
    </td>
    <td data-title="@Html.DisplayNameFor(model => model.UserId)">
        @Html.DisplayFor(m => m.User.UserName)
    </td>
    <td data-title="@Html.DisplayNameFor(model => model.ProjectVersionId)">
        <div class="form-group">
            @Html.DropDownListFor(m => m.ProjectVersionId, (IEnumerable<SelectListItem>)ViewBag.projectVersionList, new { @class = "form-control" })
        </div>
    </td>
    <td data-title="@Html.DisplayNameFor(model => model.TaskTypeId)">
        <div class="form-group">
            @Html.DropDownListFor(m => m.TaskTypeId, (IEnumerable<SelectListItem>)ViewBag.taskTypeList, new { @class = "form-control" })
        </div>
    </td>
    <td data-title="@Html.DisplayNameFor(model => model.Duration)">
        <div class="form-group">
            @Html.DropDownListFor(m => m.Duration, (IEnumerable<SelectListItem>)ViewBag.durationList, new { @class = "form-control" })
            @Html.ValidationMessageFor(m => m.Duration)
        </div>
    </td>
    <td data-title="@Html.DisplayNameFor(model => model.Accomplished)">
        @Html.CheckBoxFor(m => m.Accomplished)
    </td>
    <td data-title="">
        <button type="submit" class="btn btn-default glyphicon glyphicon-floppy-disk" aria-label="Left Align"></button>
        @Html.ActionLink(" ", "Edit", new { id = Model.TaskId }, new { @class = "btn btn-default glyphicon glyphicon-edit" })
        <button type="button" class="btn btn-default" aria-label="Left Align">
            <span class="glyphicon glyphicon-align-left" aria-hidden="true">  @Html.ActionLink(" ", "Details", new { id = Model.TaskId })</span>
        </button>
        <button type="button" class="btn btn-default" aria-label="Left Align">
            <span class="glyphicon glyphicon-trash" aria-hidden="true">  @Html.ActionLink(" ", "Delete", new { id = Model.TaskId })</span>
        </button>
    </td>
</tr>
            }

Answer 1

谢谢 ！我找到了 pb ：每个表单中的字段都是名称"项目"。[属性名称]"而不是"[属性名称]"。我像这样用模型替换视图中的项目

 @foreach (var model in Model)
        {
           @Html.EditorFor(m => model)
        }

在编辑器中按模型放置m

model => model.Accomplished

谢谢！