@{
    HtmlTitle = ViewContext.ViewData.ModelMetadata.ModelType.GetDisplayName();
    var controller = this.ViewContext.RouteData.Values["controller"].ToString();
    var action = this.ViewContext.RouteData.Values["action"].ToString();
    var url = HtmlAction ?? (ViewData.Keys.Any(o => o.ToLower() == "returnurl") ? Url.Action(null, null, new { ReturnUrl = ViewData["ReturnUrl"] }) : Url.Action(null, null));
}
<div class="card card-info">
    <div class="card-header">
        <h3 class="card-title">@HtmlTitle</h3>
    </div>
    <form action="@url" method="post" class="form-horizontal">
        <div class="card-body">
            @Html.AntiForgeryToken()
            <div class="form-group row">
                <div class="col-sm-2 col-form-label"></div>
                @Html.ValidationSummary(true, "错误:", new { @class = "text-danger col-sm-8" }, "div")
            </div>
            @(await Html.PartialAsync("/Views/Shared/EditorTemplates/Input.cshtml"))
            <div class="form-group row">
                <div class="col-sm-2"> </div>
                <div class="col-sm-8">
                    @if (!DisableBackUrl && string.IsNullOrEmpty(BackUrl))
                    {
                        BackUrl = Url.Action("Index", null);
                        <a class="btn btn-default" href="@BackUrl">
                            返回
                        </a>
                    }
                    <button class="btn btn-primary" type="submit">
                        确定
                    </button>
                    @if (controller == "Account" && action == "Login")
                    {
                        <a href="@Url.Action("ForgotPassword")">忘记密码?</a>
                    }
                </div>
            </div>
        </div>
    </form>
</div>