jQuery Validate 插件为表单提供了强大的验证功能，让客户端表单验证变得更简单，同时提供了大量的定制选项，满足应用程序各种需求。该插件捆绑了一套有用的验证方法，包括 URL 和电子邮件验证，同时提供了一个用来编写用户自定义方法的 API。使用方法如下
1.引用JS库
<script src="../Script/jquery.js" type="text/javascript"></script>
<script src="../Script/jquery.validate.js" type="text/javascript"></script>
2.校验规则：
3. .NET MVC Demo应用案例：
<body class="page-body login-page">
<script type="text/javascript">
jQuery(document).ready(function ($) {
$("form#login").validate({
rules: {
username: {
required: true,
maxlength:5
},
password: {
required: true,
maxlength:6
}
},
messages: {
username: {
required: 'Please enter your username.'
maxlength:$.validator.format( "Please enter no more than {0} characters." ),
},
password: {
required: 'Please enter your password.'
}
},
});
});
</script>
@using (Html.BeginForm("Index", "Home", FormMethod.Post,new {@id="login", @class = "login-form fade-in-effect" }))
{
<p>Dear user, log in to access the admin area!</p>
<div class="form-group">
<label class="control-label" for="username">Username</label>
<input type="text" class="form-control input-dark" name="username" id="username" autocomplete="off" />
</div>
<div class="form-group">
<label class="control-label" for="passwd">Password</label>
<input type="password" class="form-control input-dark" name="password" id="passwd" autocomplete="off" />
</div>
<div class="btn-white">
<p>
@Html.ValidationMessage("username")
@Html.ValidationMessage("password")
</p>
</div>
<div class="form-group">
<button type="submit" class="btn btn-white btn-block">
<i class="fa-lock"></i>
Log In
</button>
</div>
<div class="login-footer text-right">
<a href="#">忘记密码</a>
<a href="#">点击注册</a>
</div>
}
<!-- External login -->
<div class="external-login">
</div>
</div>
</div>
</div>