Asp.net 将项目的复选框列表添加到MVC4视图

我面临的挑战是将项目的复选框列表添加到MVC4视图中。我有几个模型在同一MVC4视图中。因此，我创建了下面的视图模型

public class ArticlesVM
{
    public article articles { get; set; }
    public game games { get; set; }        
    public gallery mgallery { get; set; }
    public team teams { get; set; }

    public ArticlesVM()
    {
        Teams = new List<TeamVM>();
    }
    public List<TeamVM> Teams { get; set; }
}

将以下内容添加到我的控制器操作：

    [HttpGet]
    public ActionResult Index(ArticlesVM model)
    {
        model = new ArticlesVM ();
        model = new ArticlesVM();
        var teamList = (from p in db.teams
                     select new TeamVM()
                     {
                         ID = p.teamID,
                         TeamName = p.teamName,
                         IsSelected = p.IsSelected
                     });
        model.Teams = teamList.ToList();

        ViewBag.gameList = new SelectList(db.games, "gameID", "gameName");
        return View(model);
    }

现在在视图的这一部分中有一个空引用错误：

    <div class="form-group">
        @Html.HiddenFor(model => model.teams.teamID)
        @Html.DisplayFor(model => model.teams.teamName)
        <div class="col-md-8">
            @for(int i = 0; i < Model.Teams.Count; i++){
                @Html.HiddenFor(model => model.Teams[i].ID)
                @Html.CheckBoxFor(model => model.Teams[i].IsSelected)
                @Html.LabelFor(model => model.Teams[i].IsSelected, Model.Teams[i].TeamName)
            }
        </div>
    </div>

---

CheckBoxListFor不是MVC的一部分。显示使用的扩展方法。团队的teamName属性是什么？如果要使用复选框选择多个团队，则需要集合，而不是字符串。和CheckBoxFor绑定到布尔属性。不清楚您想要做什么，但可能会指导您-这是一个用于选择与用户关联的角色的UI您的控制器操作公共操作结果Createint ID似乎不相关它返回一个TeamVM模型，但您引用的视图有一个为ArticlesVM的模型。是否显示了错误的控制器方法？如果由于属性列表Teams的值为null而出现null引用错误，则需要对其进行初始化并向其中添加项。但是你的模型非常混乱。您有一个属性team teams和另一个属性List teams，这毫无意义。首先显示生成所显示视图的GET方法。

    [HttpGet]
    public ActionResult Index(ArticlesVM model)
    {
        model = new ArticlesVM ();
        model = new ArticlesVM();
        var teamList = (from p in db.teams
                     select new TeamVM()
                     {
                         ID = p.teamID,
                         TeamName = p.teamName,
                         IsSelected = p.IsSelected
                     });
        model.Teams = teamList.ToList();

        ViewBag.gameList = new SelectList(db.games, "gameID", "gameName");
        return View(model);
    }

    <div class="form-group">
        @Html.HiddenFor(model => model.teams.teamID)
        @Html.DisplayFor(model => model.teams.teamName)
        <div class="col-md-8">
            @for(int i = 0; i < Model.Teams.Count; i++){
                @Html.HiddenFor(model => model.Teams[i].ID)
                @Html.CheckBoxFor(model => model.Teams[i].IsSelected)
                @Html.LabelFor(model => model.Teams[i].IsSelected, Model.Teams[i].TeamName)
            }
        </div>
    </div>