数据未从MVC视图正确返回到控制器

时间:2015-09-18 05:56:10

标签: asp.net-mvc

这是我的模特;

using System;
using System.ComponentModel.DataAnnotations;

namespace thinkBigHR.Models
{
public class Shift
{
    [Key]
    public int Id { get; set; }
    public DateTime Date { get; set; }
    public Employee Employee { get; set; }
}
}

这是我的控制器;

// POST: Shifts/Create
    [HttpPost]
    [ValidateAntiForgeryToken]
    public ActionResult Create([Bind(Include = "Date, Employee")] Shift shift)
    {
        ClaimsIdentity user = User.Identity as ClaimsIdentity;
        if (user.HasClaim("Administrator", "true"))
        {
            if (ModelState.IsValid)
            {
                db.Shifts.Add(shift);
                db.SaveChanges();
                return RedirectToAction("Index");
            }
            return View(shift);
        }
        return new HttpStatusCodeResult(HttpStatusCode.Unauthorized);
    }

这是我的观点。

@using thinkBigHR.Models;
@model thinkBigHR.Models.Shift
@{
ApplicationDbContext db = new ApplicationDbContext();
ViewBag.Title = "Create";
var employees = db.Employees.ToList();
}
<h2>Create</h2>
@using (Html.BeginForm()) 
{
@Html.AntiForgeryToken()
<div class="form-horizontal">
    <h4>Shift</h4>
    <hr />
    @Html.ValidationSummary(true, "", new { @class = "text-danger" })
    <div class="form-group">
        @Html.LabelFor(model => model.Date, htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            <input type="datetime-local" class="form-control" id="Date" name="Date" />
            @Html.ValidationMessageFor(model => model.Date, "", new { @class = "text-danger" })
        </div>
    </div>
    <div class="form-group">
        <label class="control-label col-md-2">Assigned Employee:</label>
        <select name="Employee" class="form-control">
            @foreach (var item in employees)
            {
                <option value="@item.Id" id="Employee">@item.LegalName (@item.JobTitle)</option>
            }
        </select>
    </div>
    <div class="form-group">
        <div class="col-md-offset-2 col-md-10">
            <input type="submit" value="Create" class="btn btn-default" />
        </div>
    </div>
</div>
}
<div>
@Html.ActionLink("Back to List", "Index")
</div>
@section Scripts {
@Scripts.Render("~/bundles/jqueryval")
}

因此它正确地呈现视图,但是一旦数据返回到控制器,我就设置了断点,并且它显示仅传递了班次的日期,但没有选择任何Employee的详细信息(返回) as null)。

1 个答案:

答案 0 :(得分:0)

这是因为ASP.NET MVC默认模型绑定器无法确定Shift的Employee成员中要存储的内容。

Employee是一个类,您需要创建名为它的成员的HTML控件:

<input name="Employee.LegalName" />
<input name="Employee.JobTitle" />

现在,在发布表单后,ASP.NET MVC模型绑定器将知道哪个输入字段属于Shift中Employee类的哪个成员。

Here you can find有关默认模型装订器的详细说明。