te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>javascript - Bootstrap 3 - Expanding an Collapsing Nested Table Rows - Stack Overflow

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    I have a web page that uses Bootstrap 3. In this page, I'm trying to show the relationship between grandparent, parent, and child. To do this, I have table rows that can expand/collapse. I've setup a Bootply here. My HTML looks like this:

    <div id="grandparent" class="list-group-item">
    <div data-toggle="collapse" data-target="#grandparentContent" data-role="expander" data-group-id="grandparent">
        <ul class="list-inline">
            <li id="grandparentIcon">&gt;</li>
            <li>Grandparent</li>
        </ul>
    </div>

    <div class="collapse" id="grandparentContent" aria-expanded="true">
      <table class="table">
        <thead>
          <tr>
            <th></th>
            <th>Name</th>
            <th>Created On</th>
            <th>Last Modified</th>
          </tr>
        </thead>

        <tbody>
          <tr data-toggle="collapse">
            <td><div>&gt;</div></td>
            <td>Parent 1</td>
            <td>04/02/2017</td>
            <td>04/04/2017</td>
          </tr>

          <tr class="collapse">
            <td></td>
            <td>Child A</td>
            <td>04/01/2017</td>
            <td>04/05/2017</td>
          </tr>

          <tr class="collapse">
            <td></td>
            <td>Child B</td>
            <td>04/03/2017</td>
            <td>04/04/2017</td>
          </tr>          

          <tr data-toggle="collapse">
            <td><div>&gt;</div></td>
            <td>Parent 2</td>
            <td>04/03/2017</td>
            <td>04/10/2017</td>
          </tr>

          <tr class="collapse">
            <td></td>
            <td>Child X</td>
            <td>04/10/2017</td>
            <td>04/11/2017</td>
          </tr>          
        </tbody>
      </table>
    </div>
</div>

    When either a grandparent or parent is expanded, I'm trying to change the related icon from ">" to "v". However, this doesn't work. I don't understand why. Any help is appreciated.

    I have a web page that uses Bootstrap 3. In this page, I'm trying to show the relationship between grandparent, parent, and child. To do this, I have table rows that can expand/collapse. I've setup a Bootply here. My HTML looks like this:

    <div id="grandparent" class="list-group-item">
    <div data-toggle="collapse" data-target="#grandparentContent" data-role="expander" data-group-id="grandparent">
        <ul class="list-inline">
            <li id="grandparentIcon">&gt;</li>
            <li>Grandparent</li>
        </ul>
    </div>

    <div class="collapse" id="grandparentContent" aria-expanded="true">
      <table class="table">
        <thead>
          <tr>
            <th></th>
            <th>Name</th>
            <th>Created On</th>
            <th>Last Modified</th>
          </tr>
        </thead>

        <tbody>
          <tr data-toggle="collapse">
            <td><div>&gt;</div></td>
            <td>Parent 1</td>
            <td>04/02/2017</td>
            <td>04/04/2017</td>
          </tr>

          <tr class="collapse">
            <td></td>
            <td>Child A</td>
            <td>04/01/2017</td>
            <td>04/05/2017</td>
          </tr>

          <tr class="collapse">
            <td></td>
            <td>Child B</td>
            <td>04/03/2017</td>
            <td>04/04/2017</td>
          </tr>          

          <tr data-toggle="collapse">
            <td><div>&gt;</div></td>
            <td>Parent 2</td>
            <td>04/03/2017</td>
            <td>04/10/2017</td>
          </tr>

          <tr class="collapse">
            <td></td>
            <td>Child X</td>
            <td>04/10/2017</td>
            <td>04/11/2017</td>
          </tr>          
        </tbody>
      </table>
    </div>
</div>

    When either a grandparent or parent is expanded, I'm trying to change the related icon from ">" to "v". However, this doesn't work. I don't understand why. Any help is appreciated.

    • javascript
    • twitter-bootstrap
    Share Improve this question asked Apr 11, 2017 at 14:57 user687554user687554 11.1k26 gold badges81 silver badges142 bronze badges 1
    • Looks like show.bs.collapse event and hidden.bs.collapse are never fired. Are you these a real events fired by bootstrap? – WilomGfx Commented Apr 11, 2017 at 15:06
    Add a ment  | 

    3 Answers 3

    Reset to default 12 +100

    You can do what you are trying to do by adding two things:

    1. A collapsed class that toggles each time a grandparent or parent are clicked, to represent if it is expanded or collapsed.
    2. Add CSS so that when the collapsed class is active it shows ">" and when it is not active (it is expanded) it shows a "v".

    Updated Bootply Here

    Your main issue is that you were missing data-target for your parent rows, and you also were only changing the grandparent icon with your jQuery.

    Key jQuery

    $('[data-toggle="collapse"]').on('click', function() {
  $(this).toggleClass('collapsed');
});

    Key CSS

    .collapsed .icon-class:before {
    content: '>';
}
.icon-class:before {
    content: 'v';
}

    Heres a fixed version, change the code to your own liking.

    http://www.bootply./sCCEzKCLsI#

    But essentially the show.bs.collapse and hide.bs.collapse events are fired from the .collapse and not the the data-toggle="collapse" element.

    Also to addition to WilomGfx's answer, you need to assign the data-target to the table rows.

    Preview here

    HTML

    <div id="grandparent" class="list-group-item">
    <div id="expander" data-toggle="collapse" data-target="#grandparentContent" data-role="expander" data-group-id="grandparent">
        <ul class="list-inline">
            <li id="grandparentIcon">&gt;</li>
            <li>Grandparent</li>
        </ul>
    </div>

    <div class="collapse" id="grandparentContent" aria-expanded="true">
      <table class="table">
        <thead>
          <tr>
            <th></th>
            <th>Name</th>
            <th>Created On</th>
            <th>Last Modified</th>
          </tr>
        </thead>

        <tbody>
          <tr data-toggle="collapse" data-target="#childOne">
            <td><div>&gt;</div></td>
            <td>Parent 1</td>
            <td>04/02/2017</td>
            <td>04/04/2017</td>
          </tr>

          <tr class="collapse" id="childOne">
            <td></td>
            <td>Child A</td>
            <td>04/01/2017</td>
            <td>04/05/2017</td>
          </tr>

          <tr class="collapse">
            <td></td>
            <td>Child B</td>
            <td>04/03/2017</td>
            <td>04/04/2017</td>
          </tr>          

          <tr data-toggle="collapse" data-target="#childTwo">
            <td><div>&gt;</div></td>
            <td>Parent 2</td>
            <td>04/03/2017</td>
            <td>04/10/2017</td>
          </tr>

          <tr class="collapse" id="childTwo">
            <td></td>
            <td>Child X</td>
            <td>04/10/2017</td>
            <td>04/11/2017</td>
          </tr>          
        </tbody>
      </table>
    </div>
</div>

    Script 

    $('.collapse').on('show.bs.collapse', function () {
  var groupId = $('#expander').attr('data-group-id');
  console.log(groupId);
  if (groupId) {
    $('#grandparentIcon').html('v');
  }
});

$('.collapse').on('hide.bs.collapse', function () {
  var groupId = $('#expander').attr('data-group-id');
  console.log(groupId);
  if (groupId) {
    $('#' + groupId + 'Icon').html('>');
  }
});

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