Question

我有一个小表格。我想在选中所有单选按钮后启用提交按钮。

下面是我的代码html

<form action="#" id="form1" method="post">
                <ul>
                    <li>
                        <h3>Here’s what I want:<strong class="result1"></strong></h3>
                        <div>
                        <span><input type="radio" value="Cash Back rewards" name="want" id="01"  /><label for="01">Cash Back rewards</label></span>
                        <span><input type="radio" value="Travel rewards" name="want" id="02" /><label for="02">Travel rewards</label></span>
                        <span><input type="radio" value="Gas rewards" name="want" id="03" /><label for="03">Gas rewards</label></span>
                        <span><input type="radio" value="Shopping rewards" name="want" id="04" /><label for="04">Shopping rewards</label></span>
                    </div>
                    </li>

                    <li>
                        <h3>Here’s my credit story: <strong class="result2"></strong></h3>
                        <div>
                        <span><input type="radio" value="I’m new to credit" name="story" id="05" /><label for="05">I’m new to credit</label></span>
                            <span><input type="radio" value="I pay my bills on time" name="story" id="06" /><label for="06">I pay my bills on time</label></span>
                        <span><input type="radio" value="I’ve had credit issues in the past" name="07" id="issues" /><label id="07">I’ve had credit issues in the past</label></span>
                        </div>
                    </li>

                    <li>
                        <h3>Here’s what I carry:</h3>
                        <span><input type="radio" value="I have a credit card with a good record" name="carry" id="08" /><label for="08">I have a credit card with a good record</label></span>
                        <span><input type="radio" value="I don’t have a credit card with a good record" name="carry" id="09" /><label for="09">I don’t have a credit card with a good record</label></span>

                    </li>
                </ul>
                <input type="submit" value="" name="" class="find" />
                </form>

我在javascript中很弱，请告诉我。

如果li没有修复它将会动态生成，所以我将不得不这样做。基本上每个li都是一个排队，单选按钮是选项。所以问题将是动态生成它可以是任何不。它没有修复

Answer 1

$(':radio').on('change', function(e) {
  var len = $(':radio:checked').length;
  if( len === 3 ) {
     $('input[type=submit].find').prop('disabled', false);
  }
});

<强> DEMO

Answer 2

标记中有4组单选按钮，您可以检查选中的单选按钮的长度是否等于无线电组的长度，如果是，则启用提交按钮，尝试以下操作：

$(document).on('change', 'input[type=radio]', function(){
   if ($('input[type=radio]:checked').length == 4) {
       $('input[type=submit]').prop('disabled', false)
   } 
})

DEMO

请注意story组中的第三个元素具有不同的名称属性。

<span><input type="radio" value="I’m new to credit" name="story" id="05" /><label for="05">I’m new to credit</label></span>
<span><input type="radio" value="I pay my bills on time" name="story" id="06" /><label for="06">I pay my bills on time</label></span>
<span><input type="radio" value="I’ve had credit issues in the past" name="07" id="issues" /><label id="07">I’ve had credit issues in the past</label></span>
                                                 --------------------------^

Answer 3

或者再次：

$('input[type=radio]').on('change', function(){
    if(
         $('input[name=want]').is(':checked') &&
         $('input[name=story]').is(':checked') &&
         $('input[name=carry]').is(':checked')
     ){
         $('input[type=submit]').prop('disabled', false)
     }
});

需要启用提交按钮

3 个答案: