ASP.NET Core 3 MVC：对象列表的模型绑定

我正在尝试将名称列表发布到表单，允许用户选择相关名称，然后将其重新发布。一切正常，但发回为空。你能指出我的愚蠢错误吗？

[HttpGet]
public IActionResult Start()
{
    // Get guid and name for all chars and post as list with PC/NPC role and selector.
    // Post this list to the view.
    List<CombatantSelect>cs_list = new List<CombatantSelect>();

    var chars = _context.Characters.AsEnumerable();

    foreach(var c in chars)
    {
        CombatantSelect cs = new CombatantSelect();
        cs.CharGuid = c.Id.ToString();
        cs.Name = c.Name;
        cs.Role = c.PlayerRole.ToString();
        cs_list.Add(cs);
    }

    return View(cs_list);
}

这是发布此列表的控制器动作见图。当它到达时，我现在正确地形成了它。

表的视图

我使用此视图渲染表格。

@using Traveller_Web_2.ViewModels
@model List<CombatantSelect>
@{ 
    ViewData["Title"] = "Start";
    Layout = "~/Views/Shared/_Layout.cshtml";
}

<h1>Start</h1>

<h6>tbc</h6>
<hr />
<div class="row">
    <div class="col-md-4">
        <form method="post" asp-action="Start" asp-controller="Combat">
            <table class="table">
                <thead class="">
                    <tr>
                        <th>Select for combat</th>
                        <th>Name</th>
                        <th>Role</th>
                    </tr>
                </thead>
                <tbody>

                        @Html.EditorForModel("CombatantSelect")
                </tbody>
            </table>
                <input asp-action="Start" asp-controller="Combat" type="submit" value="Select" class="btn btn-primary" />
        </form>
    </div>
</div>

这是视图模型：

public class CombatantSelect
{
        [Key]
        public string CharGuid { get; set; }
        public string Name { get; set; }
        public string Role { get; set; }
        public bool SelectForCombat { get; set; }
}

这个编辑器模板：

@model IEnumerable<Traveller_Web_2.ViewModels.CombatantSelect>
@for (int i = 0; i < Model.Count(); i++)
{
    <tr>
        <td>
            <input id="SelectForCombat[@i]" asp-for="@Model.ElementAt(i).SelectForCombat" type="checkbox" name="SelectForCombat[@i]" itemid="@i" />
           </td>
        <td>
           <input id="Name[@i]" name="Name[@i]" asp-for="@Model.ElementAt(i).Name" type="text"  />
        </td>
        <td>
            <input id="Name[@i]" name="Name[@i]" asp-for="@Model.ElementAt(i).Role" type="text"  />
            <input id="CharGuid[@i]" name="CharGuid[@i]" type="hidden" asp-for="@Model.ElementAt(i).CharGuid"  />
        </td>
    </tr>
}

这是演示ID和Name中索引的一部分。

<form method="post" action="/Combat/Start">
            <table class="table">
                <thead class="">
                    <tr>
                        <th>Select for combat</th>
                        <th>Name</th>
                        <th>Role</th>
                    </tr>
                </thead>
                <tbody>

                            <tr>
        <td>
            <input id="SelectForCombat[0]" type="checkbox" name="SelectForCombat[0]" itemid="0" data-val="true" data-val-required="The SelectForCombat field is required." value="true" />
           </td>
        <td>
           <input id="Name[0]" name="Name[0]" type="text" value="Chief Sales Officer" />
        </td>
        <td>
            <input id="Name[0]" name="Name[0]" type="text" value="Player" />
            <input id="CharGuid[0]" name="CharGuid[0]" type="hidden" value="bf373774-691a-43f2-5ff8-08d75cab14e2" />
        </td>
    </tr>
    <tr>
        <td>
            <input id="SelectForCombat[1]" type="checkbox" name="SelectForCombat[1]" itemid="1" value="true" />
           </td>
        <td>
           <input id="Name[1]" name="Name[1]" type="text" value="Deputy Shop Assistant" />
        </td>
        <td>
            <input id="Name[1]" name="Name[1]" type="text" value="FriendlyNPC" />
            <input id="CharGuid[1]" name="CharGuid[1]" type="hidden" value="347298c5-984b-460a-f9f8-08d75cac89b9" />
        </td>
    </tr>

它回传到控制器中的该方法。

[HttpPost]
[ValidateAntiForgeryToken]
public IActionResult Start([Bind("CharGuid, Role, SelectForCombat, Name")] 
                           List<CombatantSelect> combatantSelects)
{
    // If it works do something with it, if not give it back
    if (ModelState.IsValid)
    {
        combatantSelects.Count();
    }

    return View(combatantSelects);
}

在ModelState没有错误-它告诉我有一个名单CombatantSelect，但它具有计数0。

有任何想法吗？提前谢谢了。