【问题标题】：Datatables single column search数据表单列搜索
【发布时间】：2016-02-05 13:23:20
【问题描述】：

我有一个基本表格，我只想搜索一个列。

您可以在每一列的底部看到一个搜索过滤器，但我只希望在office 列上有一个搜索过滤器。

如果搜索过滤器位于顶部，而不是像现在这样位于底部，那也很好。

基本上，我希望我的表格看起来类似于this one，但是我只希望在 one 列上使用 one 过滤器，而不是每列上的过滤器。

感谢任何帮助。

我的代码如下。

// Setup - add a text input to each footer cell
$('#example tfoot th').each(function() {
  var title = $(this).text();
  $(this).html('<input type="text" placeholder="Search ' + title + '" />');
});

// DataTable
var table = $('#example').DataTable();

// Apply the search
table.columns().every(function() {
  var that = this;

  $('input', this.footer()).on('keyup change', function() {
    if (that.search() !== this.value) {
      that
        .search(this.value)
        .draw();
    }
  });
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdn.datatables.net/1.10.9/js/jquery.dataTables.js"></script>
<link href="http://cdn.datatables.net/1.10.0/css/jquery.dataTables.css" rel="stylesheet"/>

<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>$3,120</td>
    </tr>
    <tr>
      <td>Garrett Winters</td>
      <td>Director</td>
      <td>Edinburgh</td>
      <td>63</td>
      <td>2011/07/25</td>
      <td>$5,300</td>
    </tr>
    <tr>
      <td>Ashton Cox</td>
      <td>Technical Author</td>
      <td>San Francisco</td>
      <td>66</td>
      <td>2009/01/12</td>
      <td>$4,800</td>
    </tr>
    <tr>
      <td>Cedric Kelly</td>
      <td>Javascript Developer</td>
      <td>Edinburgh</td>
      <td>22</td>
      <td>2012/03/29</td>
      <td>$3,600</td>
    </tr>
    <tr>
      <td>Jenna Elliott</td>
      <td>Financial Controller</td>
      <td>Edinburgh</td>
      <td>33</td>
      <td>2008/11/28</td>
      <td>$5,300</td>
    </tr>
    <tr>
      <td>Brielle Williamson</td>
      <td>Integration Specialist</td>
      <td>New York</td>
      <td>61</td>
      <td>2012/12/02</td>
      <td>$4,525</td>
    </tr>
    <tr>
      <td>Herrod Chandler</td>
      <td>Sales Assistant</td>
      <td>San Francisco</td>
      <td>59</td>
      <td>2012/08/06</td>
      <td>$4,080</td>
    </tr>
    <tr>
      <td>Rhona Davidson</td>
      <td>Integration Specialist</td>
      <td>Edinburgh</td>
      <td>55</td>
      <td>2010/10/14</td>
      <td>$6,730</td>
    </tr>
    <tr>
      <td>Colleen Hurst</td>
      <td>Javascript Developer</td>
      <td>San Francisco</td>
      <td>39</td>
      <td>2009/09/15</td>
      <td>$5,000</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>System Architect</td>
      <td>London</td>
      <td>30</td>
      <td>2008/12/19</td>
      <td>$5,000</td>
    </tr>
    <tr>
      <td>Quinn Flynn</td>
      <td>Financial Controller</td>
      <td>Edinburgh</td>
      <td>22</td>
      <td>2013/03/03</td>
      <td>$4,200</td>
    </tr>
    <tr>
      <td>Charde Marshall</td>
      <td>Regional Director</td>
      <td>San Francisco</td>
      <td>36</td>
      <td>2008/10/16</td>
      <td>$5,300</td>
    </tr>
    <tr>
      <td>Haley Kennedy</td>
      <td>Senior Marketing Designer</td>
      <td>London</td>
      <td>43</td>
      <td>2012/12/18</td>
      <td>$4,800</td>
    </tr>
    <tr>
      <td>Tatyana Fitzpatrick</td>
      <td>Regional Director</td>
      <td>London</td>
      <td>19</td>
      <td>2010/03/17</td>
      <td>$2,875</td>
    </tr>
    <tr>
      <td>Michael Silva</td>
      <td>Senior Marketing Designer</td>
      <td>London</td>
      <td>66</td>
      <td>2012/11/27</td>
      <td>$3,750</td>
    </tr>
    <tr>
      <td>Paul Byrd</td>
      <td>Javascript Developer</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>$3,120</td>
    </tr>
    <tr>
      <td>Bradley Greer</td>
      <td>Software Engineer</td>
      <td>London</td>
      <td>41</td>
      <td>2012/10/13</td>
      <td>$3,120</td>
    </tr>
    <tr>
      <td>Dai Rios</td>
      <td>System Architect</td>
      <td>Edinburgh</td>
      <td>35</td>
      <td>2012/09/26</td>
      <td>$4,200</td>
    </tr>
    <tr>
      <td>Jenette Caldwell</td>
      <td>Financial Controller</td>
      <td>New York</td>
      <td>30</td>
      <td>2011/09/03</td>
      <td>$4,965</td>
    </tr>
    <tr>
      <td>Yuri Berry</td>
      <td>System Architect</td>
      <td>New York</td>
      <td>40</td>
      <td>2009/06/25</td>
      <td>$3,600</td>
    </tr>
    <tr>
      <td>Caesar Vance</td>
      <td>Technical Author</td>
      <td>New York</td>
      <td>21</td>
      <td>2011/12/12</td>
      <td>$4,965</td>
    </tr>
    <tr>
      <td>Doris Wilder</td>
      <td>Sales Assistant</td>
      <td>Edinburgh</td>
      <td>23</td>
      <td>2010/09/20</td>
      <td>$4,965</td>
    </tr>
    <tr>
      <td>Angelica Ramos</td>
      <td>System Architect</td>
      <td>London</td>
      <td>36</td>
      <td>2009/10/09</td>
      <td>$2,875</td>
    </tr>
    <tr>
      <td>Gavin Joyce</td>
      <td>Developer</td>
      <td>Edinburgh</td>
      <td>42</td>
      <td>2010/12/22</td>
      <td>$4,525</td>
    </tr>
    <tr>
      <td>Jennifer Chang</td>
      <td>Regional Director</td>
      <td>London</td>
      <td>28</td>
      <td>2010/11/14</td>
      <td>$4,080</td>
    </tr>
    <tr>
      <td>Brenden Wagner</td>
      <td>Software Engineer</td>
      <td>San Francisco</td>
      <td>18</td>
      <td>2011/06/07</td>
      <td>$3,750</td>
    </tr>
    <tr>
      <td>Ebony Grimes</td>
      <td>Software Engineer</td>
      <td>San Francisco</td>
      <td>48</td>
      <td>2010/03/11</td>
      <td>$2,875</td>
    </tr>
    <tr>
      <td>Russell Chavez</td>
      <td>Director</td>
      <td>Edinburgh</td>
      <td>20</td>
      <td>2011/08/14</td>
      <td>$3,600</td>
    </tr>
    <tr>
      <td>Michelle House</td>
      <td>Integration Specialist</td>
      <td>Edinburgh</td>
      <td>37</td>
      <td>2011/06/02</td>
      <td>$3,750</td>
    </tr>
    <tr>
      <td>Suki Burks</td>
      <td>Developer</td>
      <td>London</td>
      <td>53</td>
      <td>2009/10/22</td>
      <td>$2,875</td>
    </tr>
    <tr>
      <td>Prescott Bartlett</td>
      <td>Technical Author</td>
      <td>London</td>
      <td>27</td>
      <td>2011/05/07</td>
      <td>$6,730</td>
    </tr>
    <tr>
      <td>Gavin Cortez</td>
      <td>Technical Author</td>
      <td>San Francisco</td>
      <td>22</td>
      <td>2008/10/26</td>
      <td>$6,730</td>
    </tr>
    <tr>
      <td>Martena Mccray</td>
      <td>Integration Specialist</td>
      <td>Edinburgh</td>
      <td>46</td>
      <td>2011/03/09</td>
      <td>$4,080</td>
    </tr>
    <tr>
      <td>Unity Butler</td>
      <td>Senior Marketing Designer</td>
      <td>San Francisco</td>
      <td>47</td>
      <td>2009/12/09</td>
      <td>$3,750</td>
    </tr>
    <tr>
      <td>Howard Hatfield</td>
      <td>Financial Controller</td>
      <td>San Francisco</td>
      <td>51</td>
      <td>2008/12/16</td>
      <td>$4,080</td>
    </tr>
    <tr>
      <td>Hope Fuentes</td>
      <td>Financial Controller</td>
      <td>San Francisco</td>
      <td>41</td>
      <td>2010/02/12</td>
      <td>$4,200</td>
    </tr>
    <tr>
      <td>Vivian Harrell</td>
      <td>System Architect</td>
      <td>San Francisco</td>
      <td>62</td>
      <td>2009/02/14</td>
      <td>$4,965</td>
    </tr>
    <tr>
      <td>Timothy Mooney</td>
      <td>Financial Controller</td>
      <td>London</td>
      <td>37</td>
      <td>2008/12/11</td>
      <td>$4,200</td>
    </tr>
    <tr>
      <td>Jackson Bradshaw</td>
      <td>Director</td>
      <td>New York</td>
      <td>65</td>
      <td>2008/09/26</td>
      <td>$5,000</td>
    </tr>
    <tr>
      <td>Miriam Weiss</td>
      <td>Support Engineer</td>
      <td>Edinburgh</td>
      <td>64</td>
      <td>2011/02/03</td>
      <td>$4,965</td>
    </tr>
    <tr>
      <td>Bruno Nash</td>
      <td>Software Engineer</td>
      <td>London</td>
      <td>38</td>
      <td>2011/05/03</td>
      <td>$4,200</td>
    </tr>
    <tr>
      <td>Odessa Jackson</td>
      <td>Support Engineer</td>
      <td>Edinburgh</td>
      <td>37</td>
      <td>2009/08/19</td>
      <td>$3,600</td>
    </tr>
    <tr>
      <td>Thor Walton</td>
      <td>Developer</td>
      <td>New York</td>
      <td>61</td>
      <td>2013/08/11</td>
      <td>$3,600</td>
    </tr>
    <tr>
      <td>Finn Camacho</td>
      <td>Support Engineer</td>
      <td>San Francisco</td>
      <td>47</td>
      <td>2009/07/07</td>
      <td>$4,800</td>
    </tr>
    <tr>
      <td>Elton Baldwin</td>
      <td>Data Coordinator</td>
      <td>Edinburgh</td>
      <td>64</td>
      <td>2012/04/09</td>
      <td>$6,730</td>
    </tr>
    <tr>
      <td>Zenaida Frank</td>
      <td>Software Engineer</td>
      <td>New York</td>
      <td>63</td>
      <td>2010/01/04</td>
      <td>$4,800</td>
    </tr>
    <tr>
      <td>Zorita Serrano</td>
      <td>Software Engineer</td>
      <td>San Francisco</td>
      <td>56</td>
      <td>2012/06/01</td>
      <td>$5,300</td>
    </tr>
    <tr>
      <td>Jennifer Acosta</td>
      <td>Javascript Developer</td>
      <td>Edinburgh</td>
      <td>43</td>
      <td>2013/02/01</td>
      <td>$2,875</td>
    </tr>
    <tr>
      <td>Cara Stevens</td>
      <td>Sales Assistant</td>
      <td>New York</td>
      <td>46</td>
      <td>2011/12/06</td>
      <td>$4,800</td>
    </tr>
    <tr>
      <td>Hermione Butler</td>
      <td>Director</td>
      <td>London</td>
      <td>47</td>
      <td>2011/03/21</td>
      <td>$4,080</td>
    </tr>
    <tr>
      <td>Lael Greer</td>
      <td>Systems Administrator</td>
      <td>London</td>
      <td>21</td>
      <td>2009/02/27</td>
      <td>$3,120</td>
    </tr>
    <tr>
      <td>Jonas Alexander</td>
      <td>Developer</td>
      <td>San Francisco</td>
      <td>30</td>
      <td>2010/07/14</td>
      <td>$5,300</td>
    </tr>
    <tr>
      <td>Shad Decker</td>
      <td>Regional Director</td>
      <td>Edinburgh</td>
      <td>51</td>
      <td>2008/11/13</td>
      <td>$5,300</td>
    </tr>
    <tr>
      <td>Michael Bruce</td>
      <td>Javascript Developer</td>
      <td>Edinburgh</td>
      <td>29</td>
      <td>2011/06/27</td>
      <td>$4,080</td>
    </tr>
    <tr>
      <td>Donna Snider</td>
      <td>System Architect</td>
      <td>New York</td>
      <td>27</td>
      <td>2011/01/25</td>
      <td>$3,120</td>
    </tr>
  </tbody>
</table>

【问题讨论】：

标签： javascript jquery datatable datatables

【解决方案1】：

只需替换您的代码

$('#example tfoot th').each(function() {
  var title = $(this).text();
  $(this).html('<input type="text" placeholder="Search ' + title + '" />');
});

与

$('#example thead th').each(function() {

  var title = $(this).text();
  if(title == 'Office'){
  $(this).append('<br /><input type="text" placeholder="Search ' + title + '" />');
  }
});

如您所见，我将 tfoot 替换为 thead 以将搜索框设置在顶部。我设置了条件以显示“办公室”的搜索框

【讨论】：

感谢@Mitali，但这似乎不起作用。你试过了吗？搜索结果过滤不正确，点击输入框后似乎就过滤了。
哦，抱歉错过了。您需要将 "$('input', this.footer()).on('keyup change', function() " 替换为 " $('input', this.header()).on('keyup change' , function() " 也是如此。

【解决方案2】：

我知道这个问题已经回答了，

尽管如此，它可能对某些人有用...

替代最小化示例：

发件人：

// Setup - add a text input to each footer cell
$('#example tfoot th').each(function() {
  var title = $(this).text();
  $(this).html('<input type="text" placeholder="Search ' + title + '" />');
});

// DataTable
var table = $('#example').DataTable();

// Apply the search
table.columns().every(function() {
  var that = this;

  $('input', this.footer()).on('keyup change', function() {
    if (that.search() !== this.value) {
      that
        .search(this.value)
        .draw();
    }
  });

收件人：

 //Setup - add a text input to each footer cell
 $('#example tfoot th').each(function(i) {
  var title = $(this).text();
  var events = 'onchange="SearchCol(this,'+i+')"'
      events+= ' onkeyup="SearchCol(this,'+i+')"'
  $(this).html('<input type="text" '+events+' placeholder="Search '+title+'" />');
 });
 // Search Specific Column
 function SearchCol(input,col_index){
  var query = $(input).val()
  $("#example").DataTable().column(col_index).search(query).draw()
 }

【讨论】：