如何在ASP.NET MVC中绑定一个字符串列表到一个数据列表id？

public class MyViewModel
{
    public List<string> SelectedItems { get; set; }
    public IEnumerable<SelectListItem> Items { get; set; }
}

public class HomeController : Controller
{
    public ActionResult Index()
    {
        var viewModel = new MyViewModel
        {
            Items = new List<SelectListItem>
            {
                new SelectListItem { Value = "1", Text = "Item 1" },
                new SelectListItem { Value = "2", Text = "Item 2" },
                new SelectListItem { Value = "3", Text = "Item 3" }
            }
        };
        return View(viewModel);
    }

    [HttpPost]
    public ActionResult Index(MyViewModel viewModel)
    {
        // 处理viewModel.SelectedItems中的数据
        return View(viewModel);
    }
}

@model MyViewModel

@using (Html.BeginForm())
{
    @Html.ListBoxFor(m => m.SelectedItems, Model.Items)
    <input type="submit" value="Submit" />
}