如何在DataTables jquery中获取带有隐藏行的单列中单元格的DOM？

Question

我想获得“dom”而不是数据表 jquery 中隐藏行的原始 html 文本。

这方面的一个例子是，如果您使用 DataTables 的搜索功能，一些行将被隐藏，当我使用 jquery 方法获取 dom 时，我唯一得到的是可见行，当我使用 datatables 函数时，列（ ).data() 我得到一个字符串数组，但我又需要得到一列的dom。

$(document).ready(function(){
    var oTable = $('#example').DataTable();

    $('#jquery-button').on('click', function(){
            $('.row-office').each(function(){
           console.log($(this).val());
        });
    });
    $('#datatables-button').on('click', function(){
            oTable.columns(2).data().each(function(){
                var columnVal = $(this);
                console.log(columnVal);
        });
    });

});

jsfiddle： https ://jsfiddle.net/kzjay8mt/

其中 jquery 按钮在控制台中打印所有可见的 dom 元素以及类 row-office 中的文本输入

控制台中的数据表按钮打印整个表的所有“文本值”。

我需要的是一个按钮来迭代并获取“测试列”中文本输入的所有值。

有没有办法在数据表中做到这一点，还是不可能？

Answer 1

这里我的回答基于这个答案，就像我向你建议的那样。

在oTable.columns(2, { search:'applied' }).data()每个项目上，我尝试$().val() 。 如果是输入，jQuery 将返回 value 或undefined 。

 $(document).ready(function(){ var oTable = $('#example').DataTable(); $('#jquery-button').on('click', function(){ $('.row-office').each(function(){ console.log($(this).val()); }); }); $('#datatables-button').on('click', function(){ var tds = oTable.columns(2, { search:'applied' }).data(); for (var i = 0; i < tds[0].length; i++){ if ($(tds[0][i]).val()) console.log( $(tds[0][i]).val() ); } }); });

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <script src="https://cdn.datatables.net/1.10.12/js/jquery.dataTables.min.js"></script> <link href="https://cdn.datatables.net/1.10.12/css/jquery.dataTables.min.css" rel="stylesheet"/> <button id="jquery-button">jquery button</button> <button id="datatables-button">datatables button</button> <table id="example" class="display" cellspacing="0" width="100%"> <thead> <tr> <th>Name</th> <th>Position</th> <th>Test Column</th> <th>Age</th> <th>Start date</th> <th>Salary</th> </tr> </thead> <tfoot> <tr> <th>Name</th> <th>Position</th> <th>Test Column</th> <th>Age</th> <th>Start date</th> <th>Salary</th> </tr> </tfoot> <tbody> <tr> <td>Tiger Nixon</td> <td>System Architect</td> <td><input class="row-office" value="1"></td> <td>61</td> <td>2011/04/25</td> <td>$320,800</td> </tr> <tr> <td>Garrett Winters</td> <td>Accountant</td> <td><input class="row-office" value="2"></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><input class="row-office" value="3"></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><input class="row-office" value="4"></td> <td>22</td> <td>2012/03/29</td> <td>$433,060</td> </tr> <tr> <td>Airi Satou</td> <td>Accountant</td> <td><input class="row-office" value="5"></td> <td>33</td> <td>2008/11/28</td> <td>$162,700</td> </tr> <tr> <td>Brielle Williamson</td> <td>Integration Specialist</td> <td><input class="row-office" value="6"></td> <td>61</td> <td>2012/12/02</td> <td>$372,000</td> </tr> <tr> <td>Herrod Chandler</td> <td>Sales Assistant</td> <td><input class="row-office" value="7"></td> <td>59</td> <td>2012/08/06</td> <td>$137,500</td> </tr> <tr> <td>Rhona Davidson</td> <td>Integration Specialist</td> <td><input class="row-office" value="8"></td> <td>55</td> <td>2010/10/14</td> <td>$327,900</td> </tr> <tr> <td>Colleen Hurst</td> <td>Javascript Developer</td> <td><input class="row-office" value="9"></td> <td>39</td> <td>2009/09/15</td> <td>$205,500</td> </tr> <tr> <td>Sonya Frost</td> <td>Software Engineer</td> <td><input class="row-office" value="10"></td> <td>23</td> <td>2008/12/13</td> <td>$103,600</td> </tr> <tr> <td>Jena Gaines</td> <td>Office Manager</td> <td><input class="row-office"></td> <td>30</td> <td>2008/12/19</td> <td>$90,560</td> </tr> <tr> <td>Quinn Flynn</td> <td>Support Lead</td> <td><input class="row-office"></td> <td>22</td> <td>2013/03/03</td> <td>$342,000</td> </tr> <tr> <td>Charde Marshall</td> <td>Regional Director</td> <td><input class="row-office"></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><input class="row-office"></td> <td>43</td> <td>2012/12/18</td> <td>$313,500</td> </tr> <tr> <td>Tatyana Fitzpatrick</td> <td>Regional Director</td> <td><input class="row-office"></td> <td>19</td> <td>2010/03/17</td> <td>$385,750</td> </tr> <tr> <td>Michael Silva</td> <td>Marketing Designer</td> <td><input class="row-office"></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><input class="row-office"></td> <td>64</td> <td>2010/06/09</td> <td>$725,000</td> </tr> <tr> <td>Gloria Little</td> <td>Systems Administrator</td> <td><input class="row-office"></td> <td>59</td> <td>2009/04/10</td> <td>$237,500</td> </tr> <tr> <td>Bradley Greer</td> <td>Software Engineer</td> <td><input class="row-office"></td> <td>41</td> <td>2012/10/13</td> <td>$132,000</td> </tr> <tr> <td>Dai Rios</td> <td>Personnel Lead</td> <td><input class="row-office"></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> <tr> <td>Brock Lee</td> <td>Customer Support</td> <td>Tampa</td> <td>27</td> <td>2011/01/25</td> <td>$112,000</td> </tr> </tbody> </table>

Answer 2

dataTable 对象不保存对 dom 的引用（部分原因是所有“隐藏行”都不是 dom 的一部分）。

如果您需要使用 DOM 对象，您可以做的是将字符串转换为 DOM 元素（使用$(...) ）：

$('#datatables-button').on('click', function(){
    var domElements = $()
    $.each(oTable.columns(2).data()[0], function(i, elString) {
        domElements = domElements.add($(elString))
    });
    console.log(domElements);
});

这不适用于只包含字符串（没有标签）的单元格，但是你说你只需要input元素，所以我想它已经足够了......

Answer 3

以下代码使用 DOM 进行一行对齐。

 "dom": "<'row'<'col-sm-12 col-md-6'l><'col-sm-12 col-md-6'f>>" +
                      "<'row'<'col-sm-12'B>>" +
                      "<'row'<'col-sm-12'tr>>" +
                      "<'row'<'col-sm-12 col-md-5'i><'col-sm-12 col-md-7'p>>"