嗨,我正在MVC5中开发Web应用程序。我的用户名和密码字段的登录表单如下。
@using (Html.BeginForm("ClickAction", "Login", FormMethod.Post))
{
@Html.TextBox("txtUid", null, new { @maxlength = "15", id = "txtUid",
@class = "form-control validate[requiredInLogin] text-input "})
@Html.Password("txtPassword", null, new { @maxlength = "15", id =
"txtPassword", @class = "form-control validate[requiredOutLogin] text-input" })
<input type="submit" class="btn btn-primary btnLogin red"
value="SIGN IN" name="submit" />
}
我有以下动作方法,
[HttpPost]
public ActionResult ClickAction()
{
//Some logic
//When 3 unsuccessful attempts made to login then i set
//ViewBag.captcha = true;
return View();
}
我将进行3次失败的尝试登录,然后将ViewBag.Captcha设置为true。将ViewBag.captcha设置为true后,我想访问viewbag.captcha值,我想显示验证码。我可以知道如何访问ViewBag值?任何帮助,将不胜感激。谢谢,
同时,我尝试了以下选项,
@{
var message = ViewBag.captcha;
}
然后在JS
中var message = '@message';
if (message)
{
alert(message);
}
以下是我的登录视图。
<html>
<head></head>
<body>
<div id="formID">
@*<form id="formID">*@
<div class="loginContainer">
<div class="loginContentArea">
<div class="loginLogo"><img src="~/images/c3card.png" alt="C3 Card" align="middle" /></div>
@using (Html.BeginForm("ClickAction", "Login", FormMethod.Post))
{
<div class="loginUsernamePassword">
<i class="fa fa-user"></i>
@Html.TextBox("txtUid", null, new { @maxlength = "15", id = "txtUid", @class = "form-control validate[requiredInLogin] text-input ", placeholder = "Username", autocomplete = "off" })
</div>
<div class="loginUsernamePassword">
<i class="fa fa-lock"></i>
@Html.Password("txtPassword", null, new { @maxlength = "15", id = "txtPassword", @class = "form-control validate[requiredOutLogin] text-input", placeholder = "Password", autocomplete = "off", Style = "background:#FFFFFF;" })
</div>
<div class="errormessage">@TempData["Message"]</div>
<div class="captcha" id="captcha">
<div class="g-recaptcha" data-badge="inline" data-sitekey=@System.Configuration.ConfigurationManager.AppSettings["recaptchaPublicKey"]></div>
<br />
</div>
<div class="loginButton">
<input type="submit" class="btn btn-primary btnLogin red" value="SIGN IN" name="submit" />
</div>
<div class="loginLink">@Html.ActionLink("Forgot Your Password?", "Index", "ForgotPassword")@*<a href="#" data-featherlight="#recoverpwd"></a>*@</div>
}
</div>
</div>
</div>
<script type="text/javascript">
$(function () {
$('input[type=password]').each(function () {
$(this).attr('data-background-color', $(this).css('background-color'));
$(this).css('background-color', $(this).css('color'));
$(this).attr('type', 'text');
$(this).focus(function () {
$(this).attr('type', 'password');
$(this).css('background-color', $(this).attr('data-background-color'));
});
$(this).blur(function () {
$(this).css('background-color', $(this).css('color'));
$(this).attr('type', 'text');
});
});
});
jQuery(document).ready(function () {
@{ var message = ViewBag.captcha; }
alert(message);
if (message) { alert(message); }
$("[id=captcha]").hide();
// binds form submission and fields to the validation engine
jQuery("#formID").validationEngine();
$("formID").attr('autocomplete', 'off');
$('#txtUid').attr('autocomplete', 'off');
$('#txtPassword').attr('autocomplete', 'off');
});
$("#myinput").rules("add", {
minlength: 2
});
</script>
</body>
</html>
这对我不起作用。
我可以知道在上述情况下访问ViewBag值的正确方法吗?任何帮助都非常感谢。太感谢了。
由于您正在使用剃须刀,因此可以这样做:1.将您的视图袋值获取变量
<script type="text/javascript">
var message = "@ViewBag.captcha";
</script>
您不必在文档中准备就绪。2.但是,变量是类型字符串。为了在函数中使用它,您将必须执行类似的操作:
If(message.toLowerCase() == "true")
为了获得所需的效果。
要将其转换为布尔值,您可以使用
之类的东西message = message.toLowerCase() === "true"
希望它有帮助
您可以这样初始化一个ViewBag
值:
ViewBag.captcha = "true";
然后您可以在视图中这样访问它:
var message = @ViewBag.captcha;
从这里开始,您将能够使用message
。您本质上所做的是以下内容:
- 您初始化
ViewBag.captcha
(请注意,该部分已评论) - 您将其放入一个称为
message
的变量中 - 您尝试将
@message
作为string
,但您没有使用JavaScript值计算
您可以像下面的JS一样更改消息变量,然后尝试
jQuery(document).ready(function () {
var message = '@ViewBag.captcha'; //change it here
if (message)
{
alert(message);
}
$("[id=captcha]").hide();
// binds form submission and fields to the validation engine
jQuery("#formID").validationEngine();
$("formID").attr('autocomplete', 'off');
$('#txtUid').attr('autocomplete', 'off');
$('#txtPassword').attr('autocomplete', 'off');
});