第一次单击分页按钮并滚动顶部工作（数据表）

Question

http://prntscr.com/leb7s2

works onle first time

$("#custom_pagination").append($(".dataTables_paginate"));

<div id="custom_pagination"></div>

$('.paginate_button').click(function(){
    $('html, body').animate({scrollTop:0}, 'slow');
    return true;
});

https://jsfiddle.net/14gL86qu/

Answer 1

Probably DataTables is interfering click event, so better bind to mousedown event. Also, use on() so we can chain both calls. Also, with the on() method, we are affecting future .paginate_button DOM elements, as you don't know how DataTables works (and you don't have to). I've also added a log to see when this event is triggered, so you can easily debug or change behavior.

$('#example').DataTable();

$("#custom_pagination")
   .append($(".dataTables_paginate"))
   .on('mousedown', 'a.paginate_button', function(ev){
        console.log("Clicked: " + ev.target);
        $('html, body').animate({scrollTop:0}, 'slow');
        return true;
    });

Answer 2

Datatable is creating new .paginate_button elements at each draw. So those are dynamic.

You have to use Datatables drawCallback , to have the current pagination buttons appended after each draw.

And you should use delegation for the click handler.

 $('#example').DataTable({ drawCallback: function(){ $("#custom_pagination").append($(".dataTables_paginate")); } }); $('.paginate_button').on("click",function(){ $('html, body').animate({scrollTop:0}, 'slow'); return true; });

 <link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/v/dt/dt-1.10.18/datatables.min.css"/> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script type="text/javascript" src="https://cdn.datatables.net/v/dt/dt-1.10.18/datatables.min.js"></script> <table id="example" class="display" style="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> <tbody> <tr> <td>Tiger Nixon</td> <td>System Architect</td> <td>Edinburgh</td> <td>61</td> <td>2011/04/25</td> <td>$320,800</td> </tr> <tr> <td>Garrett Winters</td> <td>Accountant</td> <td>Tokyo</td> <td>63</td> <td>2011/07/25</td> <td>$170,750</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>$86,000</td> </tr> <tr> <td>Cedric Kelly</td> <td>Senior Javascript Developer</td> <td>Edinburgh</td> <td>22</td> <td>2012/03/29</td> <td>$433,060</td> </tr> <tr> <td>Airi Satou</td> <td>Accountant</td> <td>Tokyo</td> <td>33</td> <td>2008/11/28</td> <td>$162,700</td> </tr> <tr> <td>Brielle Williamson</td> <td>Integration Specialist</td> <td>New York</td> <td>61</td> <td>2012/12/02</td> <td>$372,000</td> </tr> <tr> <td>Herrod Chandler</td> <td>Sales Assistant</td> <td>San Francisco</td> <td>59</td> <td>2012/08/06</td> <td>$137,500</td> </tr> <tr> <td>Rhona Davidson</td> <td>Integration Specialist</td> <td>Tokyo</td> <td>55</td> <td>2010/10/14</td> <td>$327,900</td> </tr> <tr> <td>Colleen Hurst</td> <td>Javascript Developer</td> <td>San Francisco</td> <td>39</td> <td>2009/09/15</td> <td>$205,500</td> </tr> <tr> <td>Sonya Frost</td> <td>Software Engineer</td> <td>Edinburgh</td> <td>23</td> <td>2008/12/13</td> <td>$103,600</td> </tr> <tr> <td>Jena Gaines</td> <td>Office Manager</td> <td>London</td> <td>30</td> <td>2008/12/19</td> <td>$90,560</td> </tr> <tr> <td>Quinn Flynn</td> <td>Support Lead</td> <td>Edinburgh</td> <td>22</td> <td>2013/03/03</td> <td>$342,000</td> </tr> <tr> <td>Charde Marshall</td> <td>Regional Director</td> <td>San Francisco</td> <td>36</td> <td>2008/10/16</td> <td>$470,600</td> </tr> <tr> <td>Haley Kennedy</td> <td>Senior Marketing Designer</td> <td>London</td> <td>43</td> <td>2012/12/18</td> <td>$313,500</td> </tr> <tr> <td>Tatyana Fitzpatrick</td> <td>Regional Director</td> <td>London</td> <td>19</td> <td>2010/03/17</td> <td>$385,750</td> </tr> <tr> <td>Michael Silva</td> <td>Marketing Designer</td> <td>London</td> <td>66</td> <td>2012/11/27</td> <td>$198,500</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>$725,000</td> </tr> <tr> <td>Gloria Little</td> <td>Systems Administrator</td> <td>New York</td> <td>59</td> <td>2009/04/10</td> <td>$237,500</td> </tr> <tr> <td>Bradley Greer</td> <td>Software Engineer</td> <td>London</td> <td>41</td> <td>2012/10/13</td> <td>$132,000</td> </tr> <tr> <td>Dai Rios</td> <td>Personnel Lead</td> <td>Edinburgh</td> <td>35</td> <td>2012/09/26</td> <td>$217,500</td> </tr> <tr> <td>Jenette Caldwell</td> <td>Development Lead</td> <td>New York</td> <td>30</td> <td>2011/09/03</td> <td>$345,000</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>$675,000</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>$106,450</td> </tr> <tr> <td>Doris Wilder</td> <td>Sales Assistant</td> <td>Sidney</td> <td>23</td> <td>2010/09/20</td> <td>$85,600</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>$1,200,000</td> </tr> <tr> <td>Gavin Joyce</td> <td>Developer</td> <td>Edinburgh</td> <td>42</td> <td>2010/12/22</td> <td>$92,575</td> </tr> <tr> <td>Jennifer Chang</td> <td>Regional Director</td> <td>Singapore</td> <td>28</td> <td>2010/11/14</td> <td>$357,650</td> </tr> <tr> <td>Brenden Wagner</td> <td>Software Engineer</td> <td>San Francisco</td> <td>28</td> <td>2011/06/07</td> <td>$206,850</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>$850,000</td> </tr> <tr> <td>Shou Itou</td> <td>Regional Marketing</td> <td>Tokyo</td> <td>20</td> <td>2011/08/14</td> <td>$163,000</td> </tr> <tr> <td>Michelle House</td> <td>Integration Specialist</td> <td>Sidney</td> <td>37</td> <td>2011/06/02</td> <td>$95,400</td> </tr> <tr> <td>Suki Burks</td> <td>Developer</td> <td>London</td> <td>53</td> <td>2009/10/22</td> <td>$114,500</td> </tr> <tr> <td>Prescott Bartlett</td> <td>Technical Author</td> <td>London</td> <td>27</td> <td>2011/05/07</td> <td>$145,000</td> </tr> <tr> <td>Gavin Cortez</td> <td>Team Leader</td> <td>San Francisco</td> <td>22</td> <td>2008/10/26</td> <td>$235,500</td> </tr> <tr> <td>Martena Mccray</td> <td>Post-Sales support</td> <td>Edinburgh</td> <td>46</td> <td>2011/03/09</td> <td>$324,050</td> </tr> <tr> <td>Unity Butler</td> <td>Marketing Designer</td> <td>San Francisco</td> <td>47</td> <td>2009/12/09</td> <td>$85,675</td> </tr> <tr> <td>Howard Hatfield</td> <td>Office Manager</td> <td>San Francisco</td> <td>51</td> <td>2008/12/16</td> <td>$164,500</td> </tr> <tr> <td>Hope Fuentes</td> <td>Secretary</td> <td>San Francisco</td> <td>41</td> <td>2010/02/12</td> <td>$109,850</td> </tr> <tr> <td>Vivian Harrell</td> <td>Financial Controller</td> <td>San Francisco</td> <td>62</td> <td>2009/02/14</td> <td>$452,500</td> </tr> <tr> <td>Timothy Mooney</td> <td>Office Manager</td> <td>London</td> <td>37</td> <td>2008/12/11</td> <td>$136,200</td> </tr> <tr> <td>Jackson Bradshaw</td> <td>Director</td> <td>New York</td> <td>65</td> <td>2008/09/26</td> <td>$645,750</td> </tr> <tr> <td>Olivia Liang</td> <td>Support Engineer</td> <td>Singapore</td> <td>64</td> <td>2011/02/03</td> <td>$234,500</td> </tr> <tr> <td>Bruno Nash</td> <td>Software Engineer</td> <td>London</td> <td>38</td> <td>2011/05/03</td> <td>$163,500</td> </tr> <tr> <td>Sakura Yamamoto</td> <td>Support Engineer</td> <td>Tokyo</td> <td>37</td> <td>2009/08/19</td> <td>$139,575</td> </tr> <tr> <td>Thor Walton</td> <td>Developer</td> <td>New York</td> <td>61</td> <td>2013/08/11</td> <td>$98,540</td> </tr> <tr> <td>Finn Camacho</td> <td>Support Engineer</td> <td>San Francisco</td> <td>47</td> <td>2009/07/07</td> <td>$87,500</td> </tr> <tr> <td>Serge Baldwin</td> <td>Data Coordinator</td> <td>Singapore</td> <td>64</td> <td>2012/04/09</td> <td>$138,575</td> </tr> <tr> <td>Zenaida Frank</td> <td>Software Engineer</td> <td>New York</td> <td>63</td> <td>2010/01/04</td> <td>$125,250</td> </tr> <tr> <td>Zorita Serrano</td> <td>Software Engineer</td> <td>San Francisco</td> <td>56</td> <td>2012/06/01</td> <td>$115,000</td> </tr> <tr> <td>Jennifer Acosta</td> <td>Junior Javascript Developer</td> <td>Edinburgh</td> <td>43</td> <td>2013/02/01</td> <td>$75,650</td> </tr> <tr> <td>Cara Stevens</td> <td>Sales Assistant</td> <td>New York</td> <td>46</td> <td>2011/12/06</td> <td>$145,600</td> </tr> <tr> <td>Hermione Butler</td> <td>Regional Director</td> <td>London</td> <td>47</td> <td>2011/03/21</td> <td>$356,250</td> </tr> <tr> <td>Lael Greer</td> <td>Systems Administrator</td> <td>London</td> <td>21</td> <td>2009/02/27</td> <td>$103,500</td> </tr> <tr> <td>Jonas Alexander</td> <td>Developer</td> <td>San Francisco</td> <td>30</td> <td>2010/07/14</td> <td>$86,500</td> </tr> <tr> <td>Shad Decker</td> <td>Regional Director</td> <td>Edinburgh</td> <td>51</td> <td>2008/11/13</td> <td>$183,000</td> </tr> <tr> <td>Michael Bruce</td> <td>Javascript Developer</td> <td>Singapore</td> <td>29</td> <td>2011/06/27</td> <td>$183,000</td> </tr> <tr> <td>Donna Snider</td> <td>Customer Support</td> <td>New York</td> <td>27</td> <td>2011/01/25</td> <td>$112,000</td> </tr> </tbody> <tfoot> <tr> <th>Name</th> <th>Position</th> <th>Office</th> <th>Age</th> <th>Start date</th> <th>Salary</th> </tr> </tfoot> </table> <div id="custom_pagination"></div>

Fiddle updated