jquery 复选框验证插件 - 至少选中一个

Question

我正在使用 jquery 验证插件来验证表单字段。我在表单中有多个复选框。我为逻辑 'at least one need to be selected' 尝试了几种不同的方法，但没有任何效果，但是当我从验证插件中尝试一些东西时，它可以很好地处理这段代码。如果你能告诉我如何将下面的代码合并到验证插件中

 <script type="text/javascript">
$(document).ready(function () {
    $('.submit').click(function() {
      checked = $("input[type=checkbox]:checked").length;

      if(!checked) {
         // <form:errors path="chk" cssClass="errors" element="div" />
         $(".form-error").text("* You must check at least one checkbox.").show();
       // alert("You must check at least one checkbox.");
        return false;
      }

    });
});
<script src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.11.1/jquery.validate.min.js"></script>
 <script>


  $(document).ready(function(){

      $("#myForm").validate({



      rules: {
          crcode: "required",
          dtype: "required",
          pview: "required",
          prview: "required",


      },

      messages: {
          crcode: "Rate code is required",
          dtype: "Dwell type is required",
          pview: "Public view is required",
          prview: "Private view is required",


      }

      });
      });

  </script>
Here are my checkboxes
 <div class="[ form-group ]" style="font-family: KlavikaWebBasicBold;" >
            <input type="checkbox" name="chkbox" id="fancy-checkbox-default1" autocomplete="off" class="fancy" />
            <div class="[ btn-group ]">
                <label for="fancy-checkbox-default1" class="[ btn btn-default ]">
                    <span class="[ glyphicon glyphicon-ok ]"></span>
                    <span> </span>
                </label>
                <label for="fancy-checkbox-default1" class="[ btn btn-default active ]">
                   Video+Internet
                </label>
            </div>
        </div>
 <div class="[ form-group ]" style="font-family: KlavikaWebBasicBold;">
            <input type="checkbox" name="chkbox" id="fancy-checkbox-default2" autocomplete="off"  class="fancy" />
            <div class="[ btn-group ]">
                <label for="fancy-checkbox-default2" class="[ btn btn-default ]">
                    <span class="[ glyphicon glyphicon-ok ]"></span>
                    <span> </span>
                </label>
                <label for="fancy-checkbox-default2" class="[ btn btn-default active ]">
                   Video+Phone&nbsp;&nbsp;
                </label>
            </div>
        </div>
 <div class="[ form-group ]" style="font-family: KlavikaWebBasicBold;">
            <input type="checkbox" name="chkbox" id="fancy-checkbox-default3" autocomplete="off" class="fancy" />
            <div class="[ btn-group ]">
                <label for="fancy-checkbox-default3" class="[ btn btn-default ]">
                    <span class="[ glyphicon glyphicon-ok ]"></span>
                    <span> </span>
                </label>
                <label for="fancy-checkbox-default3" class="[ btn btn-default active ]">
                   Video+Security
                </label>
            </div>
        </div>

Answer 1

if you can tell me how I can incorporate this below code within validation plugin

$('.submit').click(function() {
    checked = $("input[type=checkbox]:checked").length;
    if (!checked) { ....

你不知道。

该代码与 jQuery 验证插件一起使用没有意义， 可以完全删除 。使用 jQuery 验证插件时，您不需要为复选框验证编写完全独立的函数，也不需要任何类型的点击处理程序。

您只需在复选框名称上声明 required 规则，插件将自动要求至少一个复选框。

$(document).ready(function(){

      $("#myForm").validate({
          rules: {
              chkbox: "required", // <- add this
              crcode: "required",
              dtype: "required",
              pview: "required",
              prview: "required",
          },
          messages: {
              chkbox: "* You must check at least one checkbox.", // <- add this
              crcode: "Rate code is required",
              dtype: "Dwell type is required",
              pview: "Public view is required",
              prview: "Private view is required",
          }
      });

});

演示：http://jsfiddle.net/42t2twLo/

可以使用 the errorPlacement option 来帮助准确放置此复选框错误消息。

errorPlacement: function(error, element) {
    if (element.is(":checkbox")) {
        error.insertBefore(element);  // custom placement example
    } else { 
        error.insertAfter(element);   // default placement
    }
}

jquery 复选框验证插件 - 至少选中一个

jquery validation plugin for checkbox- at least one selected

jquery

jquery-validate