将起作用

<script type="text/javascript">
$(document).ready(function () {


    $('#myform').validate({
    rules: {
        $("[name^=test]"): {
        required: true,
        maxlength: 1
        }
    },
    messages: {
        $("[name^=test]"): {
        required: "You must check at least 1 box",
        maxlength: "Check no more than {0} boxes"
        }
    },
    submitHandler: function (form) { // for demo
        alert('valid form submitted'); // for demo
        return false; // for demo
    }
    });


});
    </script>
</head>
<body> 
<form id="myform" runat="server"> 
<input type="checkbox" id="chk1" name="test_1_p1" class="clschk" />x 
<input type="checkbox" id="chk2" name="test_2_p2" class="clschk"/>y 
<input type="checkbox" id="chk3" name="test_3_p3" class="clschk"/>z 
<input id="age" type="text" name="age" /> <input type="submit" /> 
</form> 
</body> 
</html>

Answer 1

我认为实现这一目标的最佳方法是考虑：

validate（规则和消息）的参数是json对象。
如果json对象必须具有dymanic内容，则可以在运行时创建
您需要自定义规则来检测所选复选框的最大数量
您需要定义一个函数来定义相应的错误消息（最大值不能写在多个地方以避免混淆和副作用）。

因此，您的问题的可能解决方案可以是：

＆＃13;

// global variable to save the validator object
var validator;


// a new rule to test if the selected checkboxes are more than the max or less than one
$.validator.addMethod('checkboxMax', function (value, elem, param) {
  var cacheCheckedElements = $('[name^=test]:checked');
  if (cacheCheckedElements.length < 1 || cacheCheckedElements.length > param.max) {
    return false;
  } else {
    validator.resetForm();
    return true;
  }
});


$(function () {
  // on ready: create the two json object: rules and messages
  var myRules = {};
  var myMessages = {};
  $('[name^=test]').each(function (index, element) {
    myRules[element.name] = {
      checkboxMax: {
        max: 2
      }
    };
    myMessages[element.name] = {
      checkboxMax: function(params, element) {
        return 'Check no more than ' + params.max + ' boxes ';
      }
    };
  });
  
  // use the previous fields (myRules and myMessages) as arguments
  validator = $('#myform').validate({
    rules: myRules,
    messages: myMessages,
    submitHandler: function (form) { // for demo
      alert('valid form submitted'); // for demo
      return false; // for demo
    }
  });
});

＆＃13;

<script src="https://code.jquery.com/jquery-1.12.1.min.js"></script>
<script src="https://cdn.jsdelivr.net/jquery.validation/1.15.0/jquery.validate.min.js"></script>

<form id="myform" runat="server">
    <input type="checkbox" id="chk1" name="test_1_p1" class="clschk"/>x
    <input type="checkbox" id="chk2" name="test_2_p2" class="clschk"/>y
    <input type="checkbox" id="chk3" name="test_3_p3" class="clschk"/>z
    <input id="age" type="text" name="age"/> <input type="submit"/>
</form>

＆＃13;

我们可以使用带有jquery验证器的通配符

将起作用

1 个答案: