$.metadata.setType("attr", "validate");
这样可以使用validate="{required:true}"的方式,或者class="required",但class="{required:true,minlength:5}"将不起作用
例如,将上面示例代码改为:
复制代码 代码如下:
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<script language="JavaScript" type="text/JavaScript" src="https://www.jb51.net/jquery-1.6.1.js"></script>
<script language="JavaScript" type="text/JavaScript" src="https://www.jb51.net/jquery.validate.min.js"></script>
<script language="JavaScript" type="text/JavaScript" src="https://www.jb51.net/jquery.metadata.js"></script>
<script>
$().ready(function() {
$.metadata.setType("attr", "validate");
$("#signupForm").validate();
});
</script>
<form method="get" action="">
<p>
<label for="firstname">Firstname</label>
<input validate="{required:true}" />
<p>
<label for="email">E-Mail</label>
<input validate="{required:true, email:true}" />
</p>
<p>
<label for="password">Password</label>
<input type="password" validate="{required:true,minlength:5}" />
</p>
<p>
<label for="confirm_password">确认密码</label>
<input type="password" validate="{required:true,minlength:5,equalTo:'#password'}" />
</p>
<p>
<input type="submit" value="Submit"/>
</p>
</form>
注意:规则部分应用完整形式,即
正确写法:
复制代码 代码如下:
<input validate="{required:true, email:true}" />
错误写法:
复制代码 代码如下:
<input validate="{required email}" />
2、将校验规则写到代码中
复制代码 代码如下:
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<script language="JavaScript" type="text/JavaScript" src="https://www.jb51.net/jquery-1.6.1.js"></script>
<script language="JavaScript" type="text/JavaScript" src="https://www.jb51.net/jquery.validate.min.js"></script>
<script language="JavaScript" type="text/JavaScript" src="https://www.jb51.net/jquery.metadata.js"></script>
<script>
$().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
</script>
<form method="get" action="">
<p>
<label for="firstname">Firstname</label>
<input />
</p>
<p>
<label for="email">E-Mail</label>
<input />
</p>
<p>
<label for="password">Password</label>
<input type="password" />
</p>
<p>
<label for="confirm_password">确认密码</label>
<input type="password" />
</p>
<p>
<input type="submit" value="Submit"/>
</p>
</form>
required:true 必须有值
required:"#aa:checked"id名称为aa的dom被选中时,则需要验证
required:function(){} 返回为真,表示需要验证(仅针对required有效,其它无效。)
后边两种常用于,表单中需要同时填或不填的元素