您发送给视图的模型不为空，因此它不会为空。如果你要注册表，请考虑这样的事情。

The model you send to the view is not empty and therefore it will not be empty. If you will make an registration form consider something like this.

[HttpGet]
public ActionResult Register()
{
    return View();
}

[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Register(RegisterViewModel model)
{
    if (ModelState.IsValid)
    {
        // Register user logic
        return RedirectToAction("Index", "Home");
    }

// If we got this far, something failed, redisplay form
return View(model);
}

@using (Html.BeginForm("Register", "Account", FormMethod.Post, new { @class = "form-horizontal", role = "form" }))
{
    @Html.AntiForgeryToken()
    <h4>Create a new account.</h4>
    @Html.ValidationSummary()
    <div class="form-group">
        @Html.LabelFor(m => m.UserName, new { @class = "col-md-2 control-label" })
        <div class="col-md-10">
            @Html.TextBoxFor(m => m.UserName, new { @class = "form-control" })
        </div>
    </div>
    <!-- More inputs or something -->
    <div class="form-group">
        <div class="col-md-offset-2 col-md-10">
            <input type="submit" class="btn btn-default" value="Register" />
        </div>
    </div>
}