选择表中第一个tr的倒数第二个td中的按钮 - 使用jQuery选择器

时间：2014-11-06 20:44:30

标签： javascript jquery html css jquery-selectors

我一直在尝试在jQuery中编写一个选择器，它在表的第一个tr的第二个最后一个td中选择一个带有类的按钮。这是我到目前为止所提出的：

$(':button.jtable-edit-command-button tr:first td:nth-last-of-type(2)').trigger('click');

但它没有用。

我也试过这个：

$(':button.jtable-edit-command-button:td:nth-last-of-type(2):tr:first').trigger('click');

但我收到的错误是：

Syntax error, unrecognized expression: unsupported pseudo: td

此处JS Fiddle和this W3 Schoosls tutorial是我用来寻求帮助的地方。非常感谢所有的帮助和建议。

2 个答案:

答案 0 :(得分：3)

替代方案你可以：

＆＃13;
＆＃13; 
$('#tabs-Risks .jtable tr:eq(1) td:nth-last-child(2) button').css('color', 'red');
＆＃13; 
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="tabs-Risks" class="tab ui-tabs-panel ui-widget-content ui-corner-bottom" aria-labelledby="FourthTab" role="tabpanel" aria-expanded="true" aria-hidden="false" style="display: block;">
  <div id="RiskTableContainer" class="jTableContainer" style="width:100%;">
    <div class="jtable-main-container">
      <div class="jtable-busy-panel-background jtable-busy-panel-background-invisible" style="display: none; width: 1432px; height: 835px;"></div>
      <div class="jtable-busy-message" style="display: none;"></div>
      <div class="jtable-title">
        <div class="jtable-title-text">Risks</div>
      </div>
      <table class="jtable">
        <thead>
          <tr>
            <th class="jtable-column-header jtable-column-header-sortable jtable-column-header-sorted-asc" style="width: 3.91146589259797%;">
              <div class="jtable-column-header-container"><span class="jtable-column-header-text">WBS</span>

              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="display: table-cell; width: 6.25834542815675%;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Task Name</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 6.47169811320755%;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Risk Event</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 5.40493468795356%;">
              <div class="jtable-column-header-container"><span class="jtable-column-header-text">Date of Concern</span>

              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 8.88969521044993%;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Impact</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 6.04499274310595%;">
              <div class="jtable-column-header-container"><span class="jtable-column-header-text">Date Identified</span>

              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 4.26705370101597%;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Days Open</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="display: none;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Date Closed</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="display: none;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Type</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="display: none;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Mitigation Cost</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 6.54281567489115%;">
              <div class="jtable-column-header-container"><span class="jtable-column-header-text">Probability</span>

              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 4.83599419448476%;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Impact Effect</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 4.83599419448476%;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Cost Impact</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 4.97822931785196%;">
              <div class="jtable-column-header-container"><span class="jtable-column-header-text">Overall Impact</span>

              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 5.90275761973875%;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Expected Cost</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 14.2235123367199%;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Impact Discussion</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 5.12046444121916%;">
              <div class="jtable-column-header-container"><span class="jtable-column-header-text">Priority Effect</span>

              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 5.12046444121916%;">
              <div class="jtable-column-header-container"><span class="jtable-column-header-text">Priority ($)</span>

              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 5.19158200290276%;">
              <div class="jtable-column-header-container"><span class="jtable-column-header-text">Severe?</span>

              </div>
            </th>
            <th class="jtable-command-column-header" style="width: 1%;"></th>
            <th class="jtable-command-column-header" style="width: 1%;"></th>
          </tr>
        </thead>
        <tbody>
          <tr class="jtable-data-row" data-record-key="267">
            <td>1.0</td>
            <td>Obtain building permits</td>
            <td><a href="http://shhasan.ddns.net/risk/view/267">get building permit earlier</a>

            </td>
            <td>2014-03-18</td>
            <td>start dry wall job earlier then expected</td>
            <td>2014-01-21</td>
            <td>269</td>
            <td style="display: none;">2014-10-17</td>
            <td style="display: none;">Opportunity</td>
            <td style="display: none;"></td>
            <td>0%</td>
            <td>70</td>
            <td>$3000</td>
            <td>0</td>
            <td>$0</td>
            <td>This will only effect dry wallers</td>
            <td>10</td>
            <td>1</td>
            <td>No</td>
            <td class="jtable-command-column">
              <button title="Edit Risk" class="jtable-command-button jtable-edit-command-button"><span>Edit Risk</span>

              </button>
            </td>
            <td class="jtable-command-column">
              <button title="Delete" class="jtable-command-button jtable-delete-command-button"><span>Delete</span>

              </button>
            </td>
          </tr>
          <tr class="jtable-data-row jtable-row-even" data-record-key="650">
            <td>14.3.1</td>
            <td>Plumbing</td>
            <td><a href="http://shhasan.ddns.net/risk/view/650">Leaks</a>

            </td>
            <td>2014-10-05</td>
            <td></td>
            <td>2014-09-26</td>
            <td>26</td>
            <td style="display: none;">2014-10-22</td>
            <td style="display: none;">Threat</td>
            <td style="display: none;"></td>
            <td>0%</td>
            <td>0</td>
            <td>$1002</td>
            <td>0</td>
            <td>$0</td>
            <td></td>
            <td>10</td>
            <td>1</td>
            <td>No</td>
            <td class="jtable-command-column">
              <button title="Edit Risk" class="jtable-command-button jtable-edit-command-button"><span>Edit Risk</span>

              </button>
            </td>
            <td class="jtable-command-column">
              <button title="Delete" class="jtable-command-button jtable-delete-command-button"><span>Delete</span>

              </button>
            </td>
          </tr>
        </tbody>
      </table>
    </div>
＆＃13;
＆＃13;
＆＃13;

当然，在您的示例中，您使用.trigger()代替.css()。

<强>参考文献：

:eq()

:nth-last-child()

答案 1 :(得分：2)

您可以使用：

＆＃13;
＆＃13; 
$('.jtable-data-row:first-child td:nth-last-of-type(2) button').css('background', 'red');
＆＃13; 
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<div id="tabs-Risks" class="tab ui-tabs-panel ui-widget-content ui-corner-bottom" aria-labelledby="FourthTab" role="tabpanel" aria-expanded="true" aria-hidden="false" style="display: block;">
  <div id="RiskTableContainer" class="jTableContainer" style="width:100%;">
    <div class="jtable-main-container">
      <div class="jtable-busy-panel-background jtable-busy-panel-background-invisible" style="display: none; width: 1432px; height: 835px;"></div>
      <div class="jtable-busy-message" style="display: none;"></div>
      <div class="jtable-title">
        <div class="jtable-title-text">Risks</div>
      </div>
      <table class="jtable">
        <thead>
          <tr>
            <th class="jtable-column-header jtable-column-header-sortable jtable-column-header-sorted-asc" style="width: 3.91146589259797%;">
              <div class="jtable-column-header-container"><span class="jtable-column-header-text">WBS</span>

              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="display: table-cell; width: 6.25834542815675%;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Task Name</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 6.47169811320755%;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Risk Event</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 5.40493468795356%;">
              <div class="jtable-column-header-container"><span class="jtable-column-header-text">Date of Concern</span>

              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 8.88969521044993%;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Impact</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 6.04499274310595%;">
              <div class="jtable-column-header-container"><span class="jtable-column-header-text">Date Identified</span>

              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 4.26705370101597%;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Days Open</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="display: none;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Date Closed</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="display: none;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Type</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="display: none;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Mitigation Cost</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 6.54281567489115%;">
              <div class="jtable-column-header-container"><span class="jtable-column-header-text">Probability</span>

              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 4.83599419448476%;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Impact Effect</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 4.83599419448476%;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Cost Impact</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 4.97822931785196%;">
              <div class="jtable-column-header-container"><span class="jtable-column-header-text">Overall Impact</span>

              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 5.90275761973875%;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Expected Cost</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 14.2235123367199%;">
              <div class="jtable-column-header-container"> <span class="jtable-column-header-text">Impact Discussion</span>

                <div class="jtable-column-resize-handler"></div>
              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 5.12046444121916%;">
              <div class="jtable-column-header-container"><span class="jtable-column-header-text">Priority Effect</span>

              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 5.12046444121916%;">
              <div class="jtable-column-header-container"><span class="jtable-column-header-text">Priority ($)</span>

              </div>
            </th>
            <th class="jtable-column-header jtable-column-header-sortable" style="width: 5.19158200290276%;">
              <div class="jtable-column-header-container"><span class="jtable-column-header-text">Severe?</span>

              </div>
            </th>
            <th class="jtable-command-column-header" style="width: 1%;"></th>
            <th class="jtable-command-column-header" style="width: 1%;"></th>
          </tr>
        </thead>
        <tbody>
          <tr class="jtable-data-row" data-record-key="267">
            <td>1.0</td>
            <td>Obtain building permits</td>
            <td><a href="http://shhasan.ddns.net/risk/view/267">get building permit earlier</a>

            </td>
            <td>2014-03-18</td>
            <td>start dry wall job earlier then expected</td>
            <td>2014-01-21</td>
            <td>269</td>
            <td style="display: none;">2014-10-17</td>
            <td style="display: none;">Opportunity</td>
            <td style="display: none;"></td>
            <td>0%</td>
            <td>70</td>
            <td>$3000</td>
            <td>0</td>
            <td>$0</td>
            <td>This will only effect dry wallers</td>
            <td>10</td>
            <td>1</td>
            <td>No</td>
            <td class="jtable-command-column">
              <button title="Edit Risk" class="jtable-command-button jtable-edit-command-button"><span>Edit Risk</span>

              </button>
            </td>
            <td class="jtable-command-column">
              <button title="Delete" class="jtable-command-button jtable-delete-command-button"><span>Delete</span>

              </button>
            </td>
          </tr>
          <tr class="jtable-data-row jtable-row-even" data-record-key="650">
            <td>14.3.1</td>
            <td>Plumbing</td>
            <td><a href="http://shhasan.ddns.net/risk/view/650">Leaks</a>

            </td>
            <td>2014-10-05</td>
            <td></td>
            <td>2014-09-26</td>
            <td>26</td>
            <td style="display: none;">2014-10-22</td>
            <td style="display: none;">Threat</td>
            <td style="display: none;"></td>
            <td>0%</td>
            <td>0</td>
            <td>$1002</td>
            <td>0</td>
            <td>$0</td>
            <td></td>
            <td>10</td>
            <td>1</td>
            <td>No</td>
            <td class="jtable-command-column">
              <button title="Edit Risk" class="jtable-command-button jtable-edit-command-button"><span>Edit Risk</span>

              </button>
            </td>
            <td class="jtable-command-column">
              <button title="Delete" class="jtable-command-button jtable-delete-command-button"><span>Delete</span>

              </button>
            </td>
          </tr>
        </tbody>
      </table>
    </div>
＆＃13;
＆＃13;
＆＃13;

参考：MDN - :first-child，MDN - :nth-last-of-type

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