JQuery 验证未验证

我正在尝试使用 JQuery 验证器插件来验证 Rails 应用程序，但它既不会抛出任何错误，也不会验证任何内容。我不知道我的代码还有什么问题——任何帮助将不胜感激！

$(document).ready(function() {
$(".theform").validate({
    rules: {
        name: {
            required:true,
            minlength:2,
            maxlength:50
        },
        email: {
            required: true,
            email: true,
            minlength:2,
            maxlength:50
        },
        phone_number: {
            required: true,
            phoneUS: true,
            minlength:9,
            maxlength:20
        }
    },
    messages: {
        name: {
            required: "Please provide your name",
            minlength: "Too few characters!",
            maxlength: "Too many characters!"
        },
        email: {
            required: "Please provide your email",
            email: "Your email address must be in the format of [email protected] /cdn-cgi/l/email-protection",
            minlength: "Too few characters!",
            maxlength: "Too many characters!"
        },
        phone_number: {
            required: "Please provide your phone number",
            phoneUS: "Please provide a valid US phone number",
            minlength: "Too few characters!",
            maxlength: "Too many characters!"
        }
    }
});
$("input#ajax").click(function() {
    $.ajax({
        type: "POST",
        url: "/create_user",
        data: {name: $('#name').val(), email: $('#email').val(), number: $('#phone_number').val(), ajax:"true"},
        success: function(msg){
            //console.log(msg.name);
            $("div#n").html(msg.name);
            $("div#e").html(msg.email);
            $("div#p").html(msg.phone_number);
        }
    });
});
});

编辑：这是我试图验证的表格：

<div id="theform">
<form name="form" action="create" method="post">

    Name: <input type="text" name="name" id="name"/><br/>
    Email: <input type="text" name="email" id="email"/><br/>
    Phone Number: <input type="text" name="phone_number" id="phone_number" /><br/>
    <input type="submit" value="Normal Submit" id="normal">
    <input type="button" value="Ajax Submit" id="ajax">

</form>
</div>

您的选择器是错误的：

$(".theform").validate({ ... });

选择所有具有类的元素theform，你的元素都没有。您需要选择form元素本身：

$("#theform > form").validate({ ... });

or

$("form[name='form']").validate({ ... });

Example: http://jsfiddle.net/nQq6t/ http://jsfiddle.net/nQq6t/