asp.net-mvc - 将复选框值绑定(bind)到模型 mvc 中的列表

Question

我的问题是我必须创建如下布局，使用 MVC 为用户分配权限。

现在创建复选框没有问题，我将使用用户列表创建它。
但是在提交表格时，我应该将其提交到下面的列表中。

public class UserRightsViewModel
    {
       public UserRightsViewModel()
        {
            _screenrights = new List<ScreenRight>();

        }
        public String Id { get; set; }// Role Name 
        List<ScreenRight> _screenrights;
        public List<ScreenRight> ScreenRights { get { return _screenrights; } set { _screenrights = value; } }

    }

screenRight 的定义如下

public class ScreenRight
{
       public String UserName { get; set; }
        public Boolean Select{ get; set; }
        public Boolean Add{ get; set; }
        public Boolean Edit{ get; set; }
       ,,,
}

现在，在提交表单时，我如何以正确的格式将其发布到 Controller 。

Answer 1

Controller :

public class HomeController : Controller
{
    public ActionResult Index()
    {
        var model = new UserRightsViewModel
        {
            // Obviously those could come from some data source
            ScreenRights = new[]
            {
                new ScreenRight { UserName = "Robert", Select = true, Add = false, Edit = false },
                new ScreenRight { UserName = "John", Select = true, Add = true, Edit = false },
                new ScreenRight { UserName = "Mike", Select = true, Add = true, Edit = false },
                new ScreenRight { UserName = "Allan", Select = true, Add = true, Edit = true },
                new ScreenRight { UserName = "Richard", Select = false, Add = false, Edit = false },
            }.ToList()
        };
        return View(model);
    }

    [HttpPost]
    public ActionResult Index(UserRightsViewModel model)
    {
        // The view model will be correctly populated here
        // TODO: do some processing with them and redirect or
        // render the same view passing it the view model
        ...
    }
}

看法:

@model UserRightsViewModel

@using (Html.BeginForm())
{
    <table>    
        <thead>
            <tr>
                <th>User Id</th>
                <th>Select</th>
                <th>Add</th>
                <th>Edit</th>
            </tr>
        </thead>
        <tbody>
            @for (int i = 0; i < Model.ScreenRights.Count; i++)
            {
                <tr>
                    <td>
                        @Html.DisplayFor(x => x.ScreenRights[i].UserName)
                        @Html.HiddenFor(x => x.ScreenRights[i].UserName)
                    </td>
                    <td>
                        @Html.CheckBoxFor(x => x.ScreenRights[i].Select)
                    </td>
                    <td>
                        @Html.CheckBoxFor(x => x.ScreenRights[i].Add)
                    </td>
                    <td>
                        @Html.CheckBoxFor(x => x.ScreenRights[i].Edit)
                    </td>
                </tr>
            }
        </tbody>
    </table>

    <button type="submit">OK</button>
}

进一步阅读: Model Binding To a List .