页面更改上的数据表事件不起作用

Question

这就是我想要的页面更改时：

$('#resultTable').on('page.dt', function() {

    if (document.getElementByID('r_tab').checked()) {
        $('.r_tab').show();
        console.log('page changed on r');
    } else {
        console.log('page changed on p');
        $('.p_tab').show();
    }

});

当我运行这段代码时，我无法再更改页面。单击任何页面 number/next 不会产生任何输出变化

Answer 1

您的代码 document.getElementByID('r_tab').checked() 一定有错误。

如果 ID 为 r_tab 的元素是复选框，则应改为 document.getElementByID('r_tab').checked。

否则页面事件处理程序应该可以正常工作，请参见下面的示例进行演示。

$(document).ready(function() {
   var table = $('#example').DataTable();
  
   $('#example').on('page.dt', function(){     
      var info = table.page.info();
     
      alert( 'Showing page: '+(info.page + 1)+' of '+info.pages );    
   });
});

<link href="http://datatables.net/release-datatables/media/css/jquery.dataTables.css" rel="stylesheet"/>

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="http://datatables.net/release-datatables/media/js/jquery.dataTables.js"></script>

<table id="example" class="display" cellspacing="0" width="100%">
    <thead>
        <tr>
            <th>Name</th>
            <th>Position</th>
            <th>Office</th>
            <th>Age</th>
            <th>Start date</th>
            <th>Salary</th>
        </tr>
    </thead>
 
    <tfoot>
        <tr>
            <th>Name</th>
            <th>Position</th>
            <th>Office</th>
            <th>Age</th>
            <th>Start date</th>
            <th>Salary</th>
        </tr>
    </tfoot>
 
    <tbody>
        <tr>
            <td>Tiger Nixon</td>
            <td>System Architect</td>
            <td>Edinburgh</td>
            <td>61</td>
            <td>2011/04/25</td>
            <td>0,800</td>
        </tr>
        <tr>
            <td>Garrett Winters</td>
            <td>Accountant</td>
            <td>Tokyo</td>
            <td>63</td>
            <td>2011/07/25</td>
            <td>0,750</td>
        </tr>
        <tr>
            <td>Ashton Cox</td>
            <td>Junior Technical Author</td>
            <td>San Francisco</td>
            <td>66</td>
            <td>2009/01/12</td>
            <td>,000</td>
        </tr>
        <tr>
            <td>Cedric Kelly</td>
            <td>Senior Javascript Developer</td>
            <td>Edinburgh</td>
            <td>22</td>
            <td>2012/03/29</td>
            <td>3,060</td>
        </tr>
        <tr>
            <td>Airi Satou</td>
            <td>Accountant</td>
            <td>Tokyo</td>
            <td>33</td>
            <td>2008/11/28</td>
            <td>2,700</td>
        </tr>
        <tr>
            <td>Brielle Williamson</td>
            <td>Integration Specialist</td>
            <td>New York</td>
            <td>61</td>
            <td>2012/12/02</td>
            <td>2,000</td>
        </tr>
        <tr>
            <td>Herrod Chandler</td>
            <td>Sales Assistant</td>
            <td>San Francisco</td>
            <td>59</td>
            <td>2012/08/06</td>
            <td>7,500</td>
        </tr>
        <tr>
            <td>Rhona Davidson</td>
            <td>Integration Specialist</td>
            <td>Tokyo</td>
            <td>55</td>
            <td>2010/10/14</td>
            <td>7,900</td>
        </tr>
        <tr>
            <td>Colleen Hurst</td>
            <td>Javascript Developer</td>
            <td>San Francisco</td>
            <td>39</td>
            <td>2009/09/15</td>
            <td>5,500</td>
        </tr>
        <tr>
            <td>Sonya Frost</td>
            <td>Software Engineer</td>
            <td>Edinburgh</td>
            <td>23</td>
            <td>2008/12/13</td>
            <td>3,600</td>
        </tr>
        <tr>
            <td>Jena Gaines</td>
            <td>Office Manager</td>
            <td>London</td>
            <td>30</td>
            <td>2008/12/19</td>
            <td>,560</td>
        </tr>
        <tr>
            <td>Quinn Flynn</td>
            <td>Support Lead</td>
            <td>Edinburgh</td>
            <td>22</td>
            <td>2013/03/03</td>
            <td>2,000</td>
        </tr>
        <tr>
            <td>Charde Marshall</td>
            <td>Regional Director</td>
            <td>San Francisco</td>
            <td>36</td>
            <td>2008/10/16</td>
            <td>0,600</td>
        </tr>
        <tr>
            <td>Haley Kennedy</td>
            <td>Senior Marketing Designer</td>
            <td>London</td>
            <td>43</td>
            <td>2012/12/18</td>
            <td>3,500</td>
        </tr>
        <tr>
            <td>Tatyana Fitzpatrick</td>
            <td>Regional Director</td>
            <td>London</td>
            <td>19</td>
            <td>2010/03/17</td>
            <td>5,750</td>
        </tr>
        <tr>
            <td>Michael Silva</td>
            <td>Marketing Designer</td>
            <td>London</td>
            <td>66</td>
            <td>2012/11/27</td>
            <td>8,500</td>
        </tr>
        <tr>
            <td>Paul Byrd</td>
            <td>Chief Financial Officer (CFO)</td>
            <td>New York</td>
            <td>64</td>
            <td>2010/06/09</td>
            <td>5,000</td>
        </tr>
        <tr>
            <td>Gloria Little</td>
            <td>Systems Administrator</td>
            <td>New York</td>
            <td>59</td>
            <td>2009/04/10</td>
            <td>7,500</td>
        </tr>
        <tr>
            <td>Bradley Greer</td>
            <td>Software Engineer</td>
            <td>London</td>
            <td>41</td>
            <td>2012/10/13</td>
            <td>2,000</td>
        </tr>
        <tr>
            <td>Dai Rios</td>
            <td>Personnel Lead</td>
            <td>Edinburgh</td>
            <td>35</td>
            <td>2012/09/26</td>
            <td>7,500</td>
        </tr>
        <tr>
            <td>Jenette Caldwell</td>
            <td>Development Lead</td>
            <td>New York</td>
            <td>30</td>
            <td>2011/09/03</td>
            <td>5,000</td>
        </tr>
        <tr>
            <td>Yuri Berry</td>
            <td>Chief Marketing Officer (CMO)</td>
            <td>New York</td>
            <td>40</td>
            <td>2009/06/25</td>
            <td>5,000</td>
        </tr>
        <tr>
            <td>Caesar Vance</td>
            <td>Pre-Sales Support</td>
            <td>New York</td>
            <td>21</td>
            <td>2011/12/12</td>
            <td>6,450</td>
        </tr>
        <tr>
            <td>Doris Wilder</td>
            <td>Sales Assistant</td>
            <td>Sidney</td>
            <td>23</td>
            <td>2010/09/20</td>
            <td>,600</td>
        </tr>
        <tr>
            <td>Angelica Ramos</td>
            <td>Chief Executive Officer (CEO)</td>
            <td>London</td>
            <td>47</td>
            <td>2009/10/09</td>
            <td>,200,000</td>
        </tr>
        <tr>
            <td>Gavin Joyce</td>
            <td>Developer</td>
            <td>Edinburgh</td>
            <td>42</td>
            <td>2010/12/22</td>
            <td>,575</td>
        </tr>
        <tr>
            <td>Jennifer Chang</td>
            <td>Regional Director</td>
            <td>Singapore</td>
            <td>28</td>
            <td>2010/11/14</td>
            <td>7,650</td>
        </tr>
        <tr>
            <td>Brenden Wagner</td>
            <td>Software Engineer</td>
            <td>San Francisco</td>
            <td>28</td>
            <td>2011/06/07</td>
            <td>6,850</td>
        </tr>
        <tr>
            <td>Fiona Green</td>
            <td>Chief Operating Officer (COO)</td>
            <td>San Francisco</td>
            <td>48</td>
            <td>2010/03/11</td>
            <td>0,000</td>
        </tr>
        <tr>
            <td>Shou Itou</td>
            <td>Regional Marketing</td>
            <td>Tokyo</td>
            <td>20</td>
            <td>2011/08/14</td>
            <td>3,000</td>
        </tr>
        <tr>
            <td>Michelle House</td>
            <td>Integration Specialist</td>
            <td>Sidney</td>
            <td>37</td>
            <td>2011/06/02</td>
            <td>,400</td>
        </tr>
        <tr>
            <td>Suki Burks</td>
            <td>Developer</td>
            <td>London</td>
            <td>53</td>
            <td>2009/10/22</td>
            <td>4,500</td>
        </tr>
        <tr>
            <td>Prescott Bartlett</td>
            <td>Technical Author</td>
            <td>London</td>
            <td>27</td>
            <td>2011/05/07</td>
            <td>5,000</td>
        </tr>
        <tr>
            <td>Gavin Cortez</td>
            <td>Team Leader</td>
            <td>San Francisco</td>
            <td>22</td>
            <td>2008/10/26</td>
            <td>5,500</td>
        </tr>
        <tr>
            <td>Martena Mccray</td>
            <td>Post-Sales support</td>
            <td>Edinburgh</td>
            <td>46</td>
            <td>2011/03/09</td>
            <td>4,050</td>
        </tr>
        <tr>
            <td>Unity Butler</td>
            <td>Marketing Designer</td>
            <td>San Francisco</td>
            <td>47</td>
            <td>2009/12/09</td>
            <td>,675</td>
        </tr>
        <tr>
            <td>Howard Hatfield</td>
            <td>Office Manager</td>
            <td>San Francisco</td>
            <td>51</td>
            <td>2008/12/16</td>
            <td>4,500</td>
        </tr>
        <tr>
            <td>Hope Fuentes</td>
            <td>Secretary</td>
            <td>San Francisco</td>
            <td>41</td>
            <td>2010/02/12</td>
            <td>9,850</td>
        </tr>
        <tr>
            <td>Vivian Harrell</td>
            <td>Financial Controller</td>
            <td>San Francisco</td>
            <td>62</td>
            <td>2009/02/14</td>
            <td>2,500</td>
        </tr>
        <tr>
            <td>Timothy Mooney</td>
            <td>Office Manager</td>
            <td>London</td>
            <td>37</td>
            <td>2008/12/11</td>
            <td>6,200</td>
        </tr>
        <tr>
            <td>Jackson Bradshaw</td>
            <td>Director</td>
            <td>New York</td>
            <td>65</td>
            <td>2008/09/26</td>
            <td>5,750</td>
        </tr>
        <tr>
            <td>Olivia Liang</td>
            <td>Support Engineer</td>
            <td>Singapore</td>
            <td>64</td>
            <td>2011/02/03</td>
            <td>4,500</td>
        </tr>
        <tr>
            <td>Bruno Nash</td>
            <td>Software Engineer</td>
            <td>London</td>
            <td>38</td>
            <td>2011/05/03</td>
            <td>3,500</td>
        </tr>
        <tr>
            <td>Sakura Yamamoto</td>
            <td>Support Engineer</td>
            <td>Tokyo</td>
            <td>37</td>
            <td>2009/08/19</td>
            <td>9,575</td>
        </tr>
        <tr>
            <td>Thor Walton</td>
            <td>Developer</td>
            <td>New York</td>
            <td>61</td>
            <td>2013/08/11</td>
            <td>,540</td>
        </tr>
        <tr>
            <td>Finn Camacho</td>
            <td>Support Engineer</td>
            <td>San Francisco</td>
            <td>47</td>
            <td>2009/07/07</td>
            <td>,500</td>
        </tr>
        <tr>
            <td>Serge Baldwin</td>
            <td>Data Coordinator</td>
            <td>Singapore</td>
            <td>64</td>
            <td>2012/04/09</td>
            <td>8,575</td>
        </tr>
        <tr>
            <td>Zenaida Frank</td>
            <td>Software Engineer</td>
            <td>New York</td>
            <td>63</td>
            <td>2010/01/04</td>
            <td>5,250</td>
        </tr>
        <tr>
            <td>Zorita Serrano</td>
            <td>Software Engineer</td>
            <td>San Francisco</td>
            <td>56</td>
            <td>2012/06/01</td>
            <td>5,000</td>
        </tr>
        <tr>
            <td>Jennifer Acosta</td>
            <td>Junior Javascript Developer</td>
            <td>Edinburgh</td>
            <td>43</td>
            <td>2013/02/01</td>
            <td>,650</td>
        </tr>
        <tr>
            <td>Cara Stevens</td>
            <td>Sales Assistant</td>
            <td>New York</td>
            <td>46</td>
            <td>2011/12/06</td>
            <td>5,600</td>
        </tr>
        <tr>
            <td>Hermione Butler</td>
            <td>Regional Director</td>
            <td>London</td>
            <td>47</td>
            <td>2011/03/21</td>
            <td>6,250</td>
        </tr>
        <tr>
            <td>Lael Greer</td>
            <td>Systems Administrator</td>
            <td>London</td>
            <td>21</td>
            <td>2009/02/27</td>
            <td>3,500</td>
        </tr>
        <tr>
            <td>Jonas Alexander</td>
            <td>Developer</td>
            <td>San Francisco</td>
            <td>30</td>
            <td>2010/07/14</td>
            <td>,500</td>
        </tr>
        <tr>
            <td>Shad Decker</td>
            <td>Regional Director</td>
            <td>Edinburgh</td>
            <td>51</td>
            <td>2008/11/13</td>
            <td>3,000</td>
        </tr>
        <tr>
            <td>Michael Bruce</td>
            <td>Javascript Developer</td>
            <td>Singapore</td>
            <td>29</td>
            <td>2011/06/27</td>
            <td>3,000</td>
        </tr>
        <tr>
            <td>Donna Snider</td>
            <td>Customer Support</td>
            <td>New York</td>
            <td>27</td>
            <td>2011/01/25</td>
            <td>2,000</td>
        </tr>
    </tbody>
</table>

Answer 2

我删除了本机 JavaScript/jQuery 组合并更改了检查复选框是否已被选中的功能：

$('#resultTable').on('page.dt', function() {

    if ($('#r_tab').is(':checked')) {
        $('.r_tab').show();
        console.log('page changed on r');
    } else {
        console.log('page changed on p');
        $('.p_tab').show();
    }

});

页面更改上的数据表事件不起作用

Datatable event on page change not working

jquery

datatables