Asp.net mvc 为什么我的表单验证没有启动？

我正在基于视图模型在视图中构建表单。视图模型在每个字段和验证规则上都有[Required]，但在检查model.IsValid时，即使所有表单字段都为空或null，它也会不断返回true。以下是视图：

@model CommunityWildlifeHabitat.ViewModel.CreateAdminViewModel
@{
    ViewBag.Title = "CreateAdmin";
}

<h2>Create Admin</h2>

@using (Html.BeginForm("CreateAdmin", "Admin", FormMethod.Post, new { @class = "form-horizontal", role = "form" }))
{
    @Html.AntiForgeryToken()
    <div class="form-group">
        @Html.LabelFor(m => m.Email, new { @class = "col-md-6 control-label" })
        <div class="col-md-6">
            @Html.TextBoxFor(m => m.Email, new { @class = "form-control" })
        </div>
    </div>
    <div class="form-group">
        @Html.LabelFor(m => m.FirstName, new { @class = "col-md-6 control-label" })
        <div class="col-md-6">
            @Html.TextBoxFor(m => m.FirstName, new { @class = "form-control" })
            @Html.ValidationMessageFor(m => m.FirstName, "", new { @class = "text-danger" })
        </div>
    </div>
    <div class="form-group">
        @Html.LabelFor(m => m.LastName, new { @class = "col-md-6 control-label" })
        <div class="col-md-6">
            @Html.TextBoxFor(m => m.LastName, new { @class = "form-control" })
            @Html.ValidationMessageFor(m => m.LastName, "", new { @class = "text-danger" })
        </div>
    </div>
    <div class="form-group">
        @Html.LabelFor(m => m.Password, new { @class = "col-md-6 control-label" })
        <div class="col-md-6">
            @Html.PasswordFor(m => m.Password, new { @class = "form-control" })
            @Html.ValidationMessageFor(m => m.Password, "", new { @class = "text-danger" })
        </div>
    </div>
    <div class="form-group">
        @Html.LabelFor(m => m.ConfirmPassword, new { @class = "col-md-6 control-label" })
        <div class="col-md-6">
            @Html.PasswordFor(m => m.ConfirmPassword, new { @class = "form-control" })
            @Html.ValidationMessageFor(m => m.ConfirmPassword, "", new { @class = "text-danger" })
        </div>
    </div>
    <div class="form-group">
        <div class="col-md-offset-5 col-md-6">
            <input type="submit" class="btn btn-habitat" value="Create Admin" />
        </div>
    </div>
}

这是控制器get和post

 [Authorize]
    public ActionResult CreateAdmin(int? id)
    {
        var model = new CreateAdminViewModel();
        if (id == null) { return RedirectToAction("Index", "Communities"); }
        if (User.Identity.IsAuthenticated)
        {
            var userId = User.Identity.GetUserId();
            var superUser = db.CommunityTeams.Where(x => x.UserId == userId && x.RoleId == 4).Any();
            // If User is not a SuperUser (Administrator)
            if (superUser == false)
                return RedirectToAction("Index", "Communities");
        }

    return View(model);

}

[Authorize]
[HttpPost]
public ActionResult CreateAdmin(FormCollection fc)
{
    var model = new CreateAdminViewModel();
    model.Email = fc["Email"];
    model.FirstName = fc["FirstName"];
    model.LastName = fc["LastName"];
    model.Password = fc["Password"];
    model.ConfirmPassword = fc["ConfirmPassword"];

    if (ModelState.IsValid)
    { }
    return RedirectToAction("index", "Admin");
}

---

在HttpPost上，您有一个FormCollection的模型类型

public ActionResult CreateAdmin(FormCollection fc)

它应该是你的型号吗？否则总是真实的状态吗

public ActionResult CreateAdmin(CreateAdminViewModel fc)

---

在HttpPost上，您有一个FormCollection的模型类型

public ActionResult CreateAdmin(FormCollection fc)

它应该是你的型号吗？否则总是真实的状态吗

public ActionResult CreateAdmin(CreateAdminViewModel fc)

---

你说得对，我把一切都弄明白了。我因为收集表格而感到困惑。我通过了模型，现在它工作了。你是对的，我把一切都弄明白了。我因为收集表格而感到困惑。我通过了模型，现在它正在工作。