我有基于All和列的数据表和搜索。这里一切都很好，但在搜索下拉选择中，表格并不令人耳目一新。例如：我选择了＆＃39;姓名＆＃39;在下拉列表中输入一些东西在右侧搜索文本框..它可以搜索但如果我从搜索中间的下拉列表中选择其他选项，则先前的选择显示而不是刷新表格。以下是我的代码。
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script type="text/javascript" charset="utf8" src="https://cdn.datatables.net/1.10.16/js/jquery.dataTables.js"></script>
<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/1.10.16/css/jquery.dataTables.css">
<table id="example">
<thead>
<tr>
<th>Seq.</th>
<th>Name</th>
<th>Position</th>
<th>Office</th>
<th>Start date</th>
<th>Salary</th>
</tr>
</thead>
<tbody>
<tr>
<td>2</td>
<td>Tiger Nixon</td>
<td>System Architect</td>
<td>Edinburgh</td>
<td>2011/04/25</td>
<td>$320,800</td>
</tr>
<tr>
<td>22</td>
<td>Garrett Winters</td>
<td>Accountant</td>
<td>Tokyo</td>
<td>2011/07/25</td>
<td>$170,750</td>
</tr>
<tr>
<td>6</td>
<td>Ashton Cox</td>
<td>Junior Technical Author</td>
<td>San Francisco</td>
<td>2009/01/12</td>
<td>$86,000</td>
</tr>
<tr>
<td>41</td>
<td>Cedric Kelly</td>
<td>Senior Javascript Developer</td>
<td>Edinburgh</td>
<td>2012/03/29</td>
<td>$433,060</td>
</tr>
<tr>
<td>55</td>
<td>Airi Satou</td>
<td>Accountant</td>
<td>Tokyo</td>
<td>2008/11/28</td>
<td>$162,700</td>
</tr>
<tr>
<td>21</td>
<td>Brielle Williamson</td>
<td>Integration Specialist</td>
<td>New York</td>
<td>2012/12/02</td>
<td>$372,000</td>
</tr>
<tr>
<td>46</td>
<td>Herrod Chandler</td>
<td>Sales Assistant</td>
<td>San Francisco</td>
<td>2012/08/06</td>
<td>$137,500</td>
</tr>
<tr>
<td>50</td>
<td>Rhona Davidson</td>
<td>Integration Specialist</td>
<td>Tokyo</td>
<td>2010/10/14</td>
<td>$327,900</td>
</tr>
<tr>
<td>26</td>
<td>Colleen Hurst</td>
<td>Javascript Developer</td>
<td>San Francisco</td>
<td>2009/09/15</td>
<td>$205,500</td>
</tr>
<tr>
<td>18</td>
<td>Sonya Frost</td>
<td>Software Engineer</td>
<td>Edinburgh</td>
<td>2008/12/13</td>
<td>$103,600</td>
</tr>
<tr>
<td>13</td>
<td>Jena Gaines</td>
<td>Office Manager</td>
<td>London</td>
<td>2008/12/19</td>
<td>$90,560</td>
</tr>
<tr>
<td>23</td>
<td>Quinn Flynn</td>
<td>Support Lead</td>
<td>Edinburgh</td>
<td>2013/03/03</td>
<td>$342,000</td>
</tr>
<tr>
<td>14</td>
<td>Charde Marshall</td>
<td>Regional Director</td>
<td>San Francisco</td>
<td>2008/10/16</td>
<td>$470,600</td>
</tr>
<tr>
<td>12</td>
<td>Haley Kennedy</td>
<td>Senior Marketing Designer</td>
<td>London</td>
<td>2012/12/18</td>
<td>$313,500</td>
</tr>
<tr>
<td>54</td>
<td>Tatyana Fitzpatrick</td>
<td>Regional Director</td>
<td>London</td>
<td>2010/03/17</td>
<td>$385,750</td>
</tr>
<tr>
<td>37</td>
<td>Michael Silva</td>
<td>Marketing Designer</td>
<td>London</td>
<td>2012/11/27</td>
<td>$198,500</td>
</tr>
<tr>
<td>32</td>
<td>Paul Byrd</td>
<td>Chief Financial Officer (CFO)</td>
<td>New York</td>
<td>2010/06/09</td>
<td>$725,000</td>
</tr>
<tr>
<td>35</td>
<td>Gloria Little</td>
<td>Systems Administrator</td>
<td>New York</td>
<td>2009/04/10</td>
<td>$237,500</td>
</tr>
<tr>
<td>48</td>
<td>Bradley Greer</td>
<td>Software Engineer</td>
<td>London</td>
<td>2012/10/13</td>
<td>$132,000</td>
</tr>
<tr>
<td>45</td>
<td>Dai Rios</td>
<td>Personnel Lead</td>
<td>Edinburgh</td>
<td>2012/09/26</td>
<td>$217,500</td>
</tr>
<tr>
<td>17</td>
<td>Jenette Caldwell</td>
<td>Development Lead</td>
<td>New York</td>
<td>2011/09/03</td>
<td>$345,000</td>
</tr>
<tr>
<td>57</td>
<td>Yuri Berry</td>
<td>Chief Marketing Officer (CMO)</td>
<td>New York</td>
<td>2009/06/25</td>
<td>$675,000</td>
</tr>
<tr>
<td>29</td>
<td>Caesar Vance</td>
<td>Pre-Sales Support</td>
<td>New York</td>
<td>2011/12/12</td>
<td>$106,450</td>
</tr>
<tr>
<td>56</td>
<td>Doris Wilder</td>
<td>Sales Assistant</td>
<td>Sidney</td>
<td>2010/09/20</td>
<td>$85,600</td>
</tr>
<tr>
<td>36</td>
<td>Angelica Ramos</td>
<td>Chief Executive Officer (CEO)</td>
<td>London</td>
<td>2009/10/09</td>
<td>$1,200,000</td>
</tr>
<tr>
<td>5</td>
<td>Gavin Joyce</td>
<td>Developer</td>
<td>Edinburgh</td>
<td>2010/12/22</td>
<td>$92,575</td>
</tr>
<tr>
<td>51</td>
<td>Jennifer Chang</td>
<td>Regional Director</td>
<td>Singapore</td>
<td>2010/11/14</td>
<td>$357,650</td>
</tr>
<tr>
<td>20</td>
<td>Brenden Wagner</td>
<td>Software Engineer</td>
<td>San Francisco</td>
<td>2011/06/07</td>
<td>$206,850</td>
</tr>
<tr>
<td>7</td>
<td>Fiona Green</td>
<td>Chief Operating Officer (COO)</td>
<td>San Francisco</td>
<td>2010/03/11</td>
<td>$850,000</td>
</tr>
<tr>
<td>1</td>
<td>Shou Itou</td>
<td>Regional Marketing</td>
<td>Tokyo</td>
<td>2011/08/14</td>
<td>$163,000</td>
</tr>
<tr>
<td>39</td>
<td>Michelle House</td>
<td>Integration Specialist</td>
<td>Sidney</td>
<td>2011/06/02</td>
<td>$95,400</td>
</tr>
<tr>
<td>40</td>
<td>Suki Burks</td>
<td>Developer</td>
<td>London</td>
<td>2009/10/22</td>
<td>$114,500</td>
</tr>
<tr>
<td>47</td>
<td>Prescott Bartlett</td>
<td>Technical Author</td>
<td>London</td>
<td>2011/05/07</td>
<td>$145,000</td>
</tr>
<tr>
<td>52</td>
<td>Gavin Cortez</td>
<td>Team Leader</td>
<td>San Francisco</td>
<td>2008/10/26</td>
<td>$235,500</td>
</tr>
<tr>
<td>8</td>
<td>Martena Mccray</td>
<td>Post-Sales support</td>
<td>Edinburgh</td>
<td>2011/03/09</td>
<td>$324,050</td>
</tr>
<tr>
<td>24</td>
<td>Unity Butler</td>
<td>Marketing Designer</td>
<td>San Francisco</td>
<td>2009/12/09</td>
<td>$85,675</td>
</tr>
<tr>
<td>38</td>
<td>Howard Hatfield</td>
<td>Office Manager</td>
<td>San Francisco</td>
<td>2008/12/16</td>
<td>$164,500</td>
</tr>
<tr>
<td>53</td>
<td>Hope Fuentes</td>
<td>Secretary</td>
<td>San Francisco</td>
<td>2010/02/12</td>
<td>$109,850</td>
</tr>
<tr>
<td>30</td>
<td>Vivian Harrell</td>
<td>Financial Controller</td>
<td>San Francisco</td>
<td>2009/02/14</td>
<td>$452,500</td>
</tr>
<tr>
<td>28</td>
<td>Timothy Mooney</td>
<td>Office Manager</td>
<td>London</td>
<td>2008/12/11</td>
<td>$136,200</td>
</tr>
<tr>
<td>34</td>
<td>Jackson Bradshaw</td>
<td>Director</td>
<td>New York</td>
<td>2008/09/26</td>
<td>$645,750</td>
</tr>
<tr>
<td>4</td>
<td>Olivia Liang</td>
<td>Support Engineer</td>
<td>Singapore</td>
<td>2011/02/03</td>
<td>$234,500</td>
</tr>
<tr>
<td>3</td>
<td>Bruno Nash</td>
<td>Software Engineer</td>
<td>London</td>
<td>2011/05/03</td>
<td>$163,500</td>
</tr>
<tr>
<td>31</td>
<td>Sakura Yamamoto</td>
<td>Support Engineer</td>
<td>Tokyo</td>
<td>2009/08/19</td>
<td>$139,575</td>
</tr>
<tr>
<td>11</td>
<td>Thor Walton</td>
<td>Developer</td>
<td>New York</td>
<td>2013/08/11</td>
<td>$98,540</td>
</tr>
<tr>
<td>10</td>
<td>Finn Camacho</td>
<td>Support Engineer</td>
<td>San Francisco</td>
<td>2009/07/07</td>
<td>$87,500</td>
</tr>
<tr>
<td>44</td>
<td>Serge Baldwin</td>
<td>Data Coordinator</td>
<td>Singapore</td>
<td>2012/04/09</td>
<td>$138,575</td>
</tr>
<tr>
<td>42</td>
<td>Zenaida Frank</td>
<td>Software Engineer</td>
<td>New York</td>
<td>2010/01/04</td>
<td>$125,250</td>
</tr>
<tr>
<td>27</td>
<td>Zorita Serrano</td>
<td>Software Engineer</td>
<td>San Francisco</td>
<td>2012/06/01</td>
<td>$115,000</td>
</tr>
<tr>
<td>49</td>
<td>Jennifer Acosta</td>
<td>Junior Javascript Developer</td>
<td>Edinburgh</td>
<td>2013/02/01</td>
<td>$75,650</td>
</tr>
<tr>
<td>15</td>
<td>Cara Stevens</td>
<td>Sales Assistant</td>
<td>New York</td>
<td>2011/12/06</td>
<td>$145,600</td>
</tr>
<tr>
<td>9</td>
<td>Hermione Butler</td>
<td>Regional Director</td>
<td>London</td>
<td>2011/03/21</td>
<td>$356,250</td>
</tr>
<tr>
<td>25</td>
<td>Lael Greer</td>
<td>Systems Administrator</td>
<td>London</td>
<td>2009/02/27</td>
<td>$103,500</td>
</tr>
<tr>
<td>33</td>
<td>Jonas Alexander</td>
<td>Developer</td>
<td>San Francisco</td>
<td>2010/07/14</td>
<td>$86,500</td>
</tr>
<tr>
<td>43</td>
<td>Shad Decker</td>
<td>Regional Director</td>
<td>Edinburgh</td>
<td>2008/11/13</td>
<td>$183,000</td>
</tr>
<tr>
<td>16</td>
<td>Michael Bruce</td>
<td>Javascript Developer</td>
<td>Singapore</td>
<td>2011/06/27</td>
<td>$183,000</td>
</tr>
<tr>
<td>19</td>
<td>Donna Snider</td>
<td>Customer Support</td>
<td>New York</td>
<td>2011/01/25</td>
<td>$112,000</td>
</tr>
</tbody>
</table>
var table = $('#example').DataTable({
dom : 'l<"#add">frtip'
})
$('<label/>').text('Search Column:').appendTo('#add')
$select = $('<select/>').appendTo('#add')
$('<option/>').val('All').text('All').appendTo($select);
$('<option/>').val('0').text('Seq').appendTo($select);
$('<option/>').val('1').text('Name').appendTo($select);
$('<option/>').val('2').text('Position').appendTo($select);
$('<option/>').val('3').text('Office').appendTo($select);
$('<option/>').val('4').text('Start Date').appendTo($select);
$('<option/>').val('5').text('Salary').appendTo($select);
$('input[type="search"]').on( 'keyup change', function () {
var searchValue = $(this).val();
var columnSearch = $select.val();
if(columnSearch == 'All'){
table.search(searchValue).draw();
} else {
table.columns(columnSearch).search(searchValue).draw();
}
});
答案 0 :(得分：0)
代码有些问题。
val()值与列索引不匹配 - 因此您将搜索错误的列。 所有易于修复的内容，请参阅实例here，该示例使用以下代码：
var table = $('#example').DataTable({
dom: 'l<"#add">frtip'
});
$('<label/>').text('Search Column:').appendTo('#add');
$select = $('<select/>').appendTo('#add');
$('<option/>').val('All').text('All').appendTo($select);
$('<option/>').val('0').text('Name').appendTo($select);
$('<option/>').val('1').text('Position').appendTo($select);
$('<option/>').val('2').text('Office').appendTo($select);
$('<option/>').val('3').text('Age').appendTo($select);
$('<option/>').val('4').text('Start Date').appendTo($select);
$('<option/>').val('5').text('Salary').appendTo($select);
$('input[type="search"]').on('keyup change recheck', function() {
console.log('here');
var searchValue = $(this).val();
var columnSearch = $select.val();
table.columns().every(function() {
this.search('');
});
if (columnSearch == 'All') {
table.search(searchValue).draw();
} else {
table.columns(columnSearch).search(searchValue).draw();
}
});
$select.on('change', function() {
$('input[type="search"]').trigger('recheck');
});