1,动态添加验证规则
// 添加$("#addConnectUser").rules("add",{rules:{required:true,isString:true},messages:{required:"用户名为必填项",isString:"请输入规范字符"}})
// 移除$("#addConnectUser").rules('remove','required')
在此我要讲一下为什么有一个isString验证规则；这个是为了限制表单中input的输入规则；比如:不允许特殊字符，或者一些特殊的要求；这个isString是自己配置的
jQuery.validator.addMethod("isString", function(value, element) {return this.optional(element) || (inputTest.test(value))
},"请输入规范内容")
// 此处的inputTest为你自定义的验证规则
2,如何给已经添加了表单验证的选项移除验证规则
$("#addConnectUser").rules("remove",'required')//再次添加可以直接用$("#addConnectUser").rules("add",'required')
1：首先在script 文件家里面添加这两个js2：其次在html页面添加脚本的引用
例如：
<html>
<body>
<form>
<input type='text' />
</form>
<script src='../script/jquery.validate.min.js'></script>
<script src='../script/jaquery.validate.unobtrusive.min.js'></script>
</body>
</html>
Good Luck！ 希望能够帮助到你！
jquery.validate.js是jquery下的一个验证插件，功能比较强大
1、默认校验规则
(1)required:true 必输字段
(2)remote:"check.php" 使用ajax方法调用check.php验证输入值
(3)email:true 必须输入正确格式的电子邮件
(4)url:true 必须输入正确格式的网址
(5)date:true 必须输入正确格式的日期
(6)dateISO:true 必须输入正确格式的日期(ISO)，例如：2009-06-23，1998/01/22 只验证格式，不验证有效性
(7)number:true 必须输入合法的数字(负数，小数)
(8)digits:true 必须输入整数
(9)creditcard: 必须输入合法的xyk号
(10)equalTo:"#field" 输入值必须和#field相同
(11)accept: 输入拥有合法后缀名的字符串（上传文件的后缀）
(12)maxlength:5 输入长度最多是5的字符串(汉字算一个字符)
(13)minlength:10 输入长度最小是10的字符串(汉字算一个字符)
(14)rangelength:[5,10] 输入长度必须介于 5 和 10 之间的字符串")(汉字算一个字符)
(15)range:[5,10] 输入值必须介于 5 和 10 之间
(16)max:5 输入值不能大于5
(17)min:10 输入值不能小于10
2、默认的提示
messages: {
required: "This field is required.",
remote: "Please fix this field.",
email: "Please enter a valid email address.",
url: "Please enter a valid URL.",
date: "Please enter a valid date.",
dateISO: "Please enter a valid date (ISO).",
dateDE: "Bitte geben Sie ein g眉ltiges Datum ein.",
number: "Please enter a valid number.",
numberDE: "Bitte geben Sie eine Nummer ein.",
digits: "Please enter only digits",
creditcard: "Please enter a valid credit card number.",
equalTo: "Please enter the same value again.",
accept: "Please enter a value with a valid extension.",
maxlength: $.validator.format("Please enter no more than {0} characters."),
minlength: $.validator.format("Please enter at least {0} characters."),
rangelength: $.validator.format("Please enter a value between {0} and {1} characters long."),
range: $.validator.format("Please enter a value between {0} and {1}."),
max: $.validator.format("Please enter a value less than or equal to {0}."),
min: $.validator.format("Please enter a value greater than or equal to {0}.")
},
如需要修改，可在js代码中加入：
jQuery.extend(jQuery.validator.messages, {
required: "必选字段",
remote: "请修正该字段",
email: "请输入正确格式的电子邮件",
url: "请输入合法的网址",
date: "请输入合法的日期",
dateISO: "请输入合法的日期 (ISO).",
number: "请输入合法的数字",
digits: "只能输入整数",
creditcard: "请输入合法的xyk号",
equalTo: "请再次输入相同的值",
accept: "请输入拥有合法后缀名的字符串",
maxlength: jQuery.validator.format("请输入一个长度最多是 {0} 的字符串"),
minlength: jQuery.validator.format("请输入一个长度最少是 {0} 的字符串"),
rangelength: jQuery.validator.format("请输入一个长度介于 {0} 和 {1} 之间的字符串"),
range: jQuery.validator.format("请输入一个介于 {0} 和 {1} 之间的值"),
max: jQuery.validator.format("请输入一个最大为 {0} 的值"),
min: jQuery.validator.format("请输入一个最小为 {0} 的值")
})
3、使用方法
1）将校验规则写到控件中
<script src="../js/jquery.js" type="text/javascript"></script>
<script src="../js/jquery.validate.js" type="text/javascript"></script>
<script src="./js/jquery.metadata.js" type="text/javascript"></script>
$().ready(function() {
$("#signupForm").validate()
})
<form id="signupForm" method="get" action="">
<label for="firstname">Firstname</label>
<input id="firstname" name="firstname" class="required" />
<label for="email">E-Mail</label>
<input id="email" name="email" class="required email" />
<label for="password">Password</label>
<input id="password" name="password" type="password" class="{required:true,minlength:5}" />
<label for="confirm_password">确认密码</label>
<input id="confirm_password" name="confirm_password" type="password" class="{required:true,minlength:5,equalTo:'#password'}" />
<input class="submit" type="submit" value="Submit"/>
</form>
2）将校验规则写到代码中
$().ready(function() {
$("#signupForm").validate({
rules: {
firstname: "required",
email: {
required: true,
email: true
},
password: {
required: true,
minlength: 5
},
confirm_password: {
required: true,
minlength: 5,
equalTo: "#password"
}
},
messages: {
firstname: "请输入姓名",
email: {
required: "请输入Email地址",
email: "请输入正确的email地址"
},
password: {
required: "请输入密码",
minlength: jQuery.format("密码不能小于{0}个字符")
},
confirm_password: {
required: "请输入确认密码",
minlength: "确认密码不能小于5个字符",
equalTo: "两次输入密码不一致不一致"
}
}
})
})
//messages处，如果某个控件没有message，将调用默认的信息
<form id="signupForm" method="get" action="">
<label for="firstname">Firstname</label>
<input id="firstname" name="firstname" />
<label for="email">E-Mail</label>
<input id="email" name="email" />
<label for="password">Password</label>
<input id="password" name="password" type="password" />
<label for="confirm_password">确认密码</label>
<input id="confirm_password" name="confirm_password" type="password" />
<input class="submit" type="submit" value="Submit"/>
</form>
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