如何在服务器端的模态引导程序中进行验证？

Question

我有一个帐户控制器,我想在模态引导程序中输入错误的用户名/密码时它会返回一条消息"无效登录尝试".从ActionResult登录()到模态.

我的_loginPartialView:

<div id="loginModal" class="modal fade">
<div class="modal-dialog">
    <div class="modal-content">
        <div class="modal-header">
            <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
            <h4 class="modal-title">Login</h4>
        </div>
        <div class="modal-body">
            <section id="loginForm">
                @using (Ajax.BeginForm("Login", "Account", new AjaxOptions { HttpMethod = "POST", UpdateTargetId = "loginModal" }))
                {
                    @Html.AntiForgeryToken()
                    @Html.ValidationSummary(true, "", new { @class = "text-danger" })
                    <div class="form-group">
                        @Html.LabelFor(m => m.Email, new { @class = "col-md-2 control-label" })
                        <div class="col-md-10">
                            @Html.TextBoxFor(m => m.Email, new { @class = "form-control" })
                            @Html.ValidationMessageFor(m => m.Email, "", new { @class = "text-danger" })
                        </div>
                    </div>
                    <div class="form-group">
                        @Html.LabelFor(m => m.Password, new { @class = "col-md-2 control-label" })
                        <div class="col-md-10">
                            @Html.PasswordFor(m => m.Password, new { @class = "form-control" })
                            @Html.ValidationMessageFor(m => m.Password, "", new { @class = "text-danger" })
                        </div>
                    </div>
                    <div style="text-align:right;">
                        <button type="submit" class="btn btn-primary btn-sm">Submmit</button>
                    </div>
                }

            </section>
        </div>
    </div>
</div>

<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>

<script>
    $(document).ready(function () {
        $('.launchLoginModal').click(function () {
            $('#loginModal').modal({
                keyboard: false
            });
        });
    });   
</script>

我的控制器:

[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Login(LoginViewModel model, string returnUrl)
{
    var result = await SignInManager.PasswordSignInAsync(model.Email, model.Password, model.RememberMe, shouldLockout: false);
    switch (result)
    {
        case SignInStatus.Failure:
        default:
            ModelState.AddModelError("", "Invalid login attempt.");
            return PartialView("_LoginModalPartial", model);
    }
}

Answer 1

我对此添加了评论，但它可能有助于您的解决方案。听起来表单提交时的无效输入会导致重定向，模式内容显示在空白页面上？由于模式是部分视图，请尝试将脚本移至 _loginPartialView 的顶部。这同样适用于您在布局页面中使用的任何捆绑包。

<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>
<div id="loginModal" class="modal fade">
       ...
</div>