何时使用“视图模型”，“部分模型”，“模板”并通过MVC 3处理子绑定

public class ChildViewModel
{
    [Required]
    public string Name { get; set; }
}

public class ParentViewModel
{
    [Required]
    public string Name { get; set; }

    public IEnumerable<ChildViewModel> Children { get; set; }
}

public class HomeController: Controller
{
    public ActionResult Index()
    {
        // TODO: Fetch an actual domain model from your repository,
        // and map it to the view model (AutoMapper is a great tool for the job)

        var model = new ParentViewModel
        {
            Name = \"parent name\",
            Children = Enumerable.Range(1, 5).Select(x => new ChildViewModel
            {
                Name = \"child \" + x
            })
        };
        return View(model);
    }

    [HttpPost]
    public ActionResult Index(ParentViewModel model)
    {
        if (!ModelState.IsValid)
        {
            return View(model);
        }

        // TODO: the model object here will contain the new values
        // => user AutoMapper to map it back to a domain model
        // and pass this domain model to the repository for processing

        return RedirectToAction(\"Index\");
    }
}

@model ParentViewModel
@using (Html.BeginForm())
{
    <h2>Parent</h2>
    <div>
        @Html.LabelFor(x => x.Name)
        @Html.EditorFor(x => x.Name)
        @Html.ValidationMessageFor(x => x.Name)
    </div>

    <h2>Children</h2>
    <table>
        <thead>
            <tr>
                <th>Child name</th>
            </tr>
        </thead>
        <tbody>
            @Html.EditorFor(x => x.Children)
        </tbody>
    </table>
    <input type=\"submit\" value=\"OK\" />
}

@model ChildViewModel
<tr>
    <td>
        @Html.LabelFor(x => x.Name)
        @Html.EditorFor(x => x.Name)
        @Html.ValidationMessageFor(x => x.Name)
    </td>
</tr>