Question

当我从选择选项值中选择ms时，我想显示复选框，复选框在范围的标识boxcheck中指定。如果是其他，则显示带有范围radiocheck

的单选按钮

这是我正在尝试的不起作用：

$('#Typeselect').change(function() {
  var value = this.value;

  if (selectedValue === 'ms') {
    $('#radiocheck').show();
    $('#boxcheck').hide();
  } else {
    $('#radiocheck').hide();
    $('#boxcheck').show();
  }
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="col-md-4 operations">
  <span style="display:none" id="boxcheck">
    <input type="checkbox" name="correct['+val+questions+'][]"> Correct
  </span>
  <span id="radiocheck" style="display:none">
    <input type="radio" name="correct['+val+questions+'][]"> Correct
  </span>
</div>
<select class="form-control" id="Typeselect" name="question_type[]" Required>
  <option value="txt">Text</option>
  <option value="ms">Color text</option>
  <option value="mm">Rainbow</option>
</select>

Answer 1

Working Demo

正如上面评论中所述，它意味着将变量名称从值更改为 selectedValue 。

尝试以下解决方案：

＆＃13;

$('#Typeselect').change(function() {
  var selectedValue = this.value;

  if (selectedValue === 'ms') {
    $('#radiocheck').show();
    $('#boxcheck').hide();
  } else {
    $('#radiocheck').hide();
    $('#boxcheck').show();
  }
});

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="col-md-4 operations">
  <span style="display:none" id="boxcheck">
    <input type="checkbox" name="correct['+val+questions+'][]"> Correct
  </span>
  <span id="radiocheck" style="display:none">
    <input type="radio" name="correct['+val+questions+'][]"> Correct
  </span>
</div>
<select class="form-control" id="Typeselect" name="question_type[]" Required>
  <option value="txt">Text</option>
  <option value="ms">Color text</option>
  <option value="mm">Rainbow</option>
</select>

＆＃13;

Answer 2

它现在正在工作

＆＃13;

$('#Typeselect').change(function() {
  var value = this.value;

  if (value === 'ms') {
    $('#radiocheck').show();
    $('#boxcheck').hide();
  } else {
    $('#radiocheck').hide();
    $('#boxcheck').show();
  }
});

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="col-md-4 operations">
  <span style="display:none" id="boxcheck">
    <input type="checkbox" name="correct['+val+questions+'][]"> Correct
  </span>
  <span id="radiocheck" style="display:none">
    <input type="radio" name="correct['+val+questions+'][]"> Correct
  </span>
</div>
<select class="form-control" id="Typeselect" name="question_type[]" Required>
  <option value="txt">Text</option>
  <option value="ms">Color text</option>
  <option value="mm">Rainbow</option>
</select>

＆＃13;

Answer 3

尝试以下代码：

  $('#Typeselect').change(function() {

  //you had a typo here...
  var selectedValue = this.value;

  if (selectedValue === 'ms') {
    $('#radiocheck').show();
    $('#boxcheck').hide();
  } else {
    $('#radiocheck').hide();
    $('#boxcheck').show();
  }
});

Answer 4

使用if条件

时需要使用value

＆＃13;

$('#Typeselect').change(function() {
  var value  = this.value;

  if (value  === 'ms') {
    $('#radiocheck').show();
    $('#boxcheck').hide();
  } else {
    $('#radiocheck').hide();
    $('#boxcheck').show();
  }
});

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="col-md-4 operations">
  <span style="display:none" id="boxcheck">
    <input type="checkbox" name="correct['+val+questions+'][]"> Correct
  </span>
  <span id="radiocheck" style="display:none">
    <input type="radio" name="correct['+val+questions+'][]"> Correct
  </span>
</div>
<select class="form-control" id="Typeselect" name="question_type[]" Required>
  <option value="txt">Text</option>
  <option value="ms">Color text</option>
  <option value="mm">Rainbow</option>
</select>

＆＃13;

在选择选择上显示/隐藏范围ID

4 个答案: