无法按 DataTable 中的列显示过滤器

Question

我正在使用数据表，它需要具有基于单独列的搜索功能以及全局搜索我正在使用二维数组。

它确实放置了搜索框，但它没有进行正确的搜索，不是很好的全局搜索

我试过

<!DOCTYPE html>
<html>

<head>
    <base target="_top">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
    <script src="https://cdn.datatables.net/1.11.0/js/jquery.dataTables.min.js" type="text/javascript"></script>
    <script src="https://cdn.datatables.net/1.11.0/js/dataTables.bootstrap5.min.js" type="text/javascript"></script>

    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/5.0.1/css/bootstrap.min.css">
    <link rel="stylesheet" href="https://cdn.datatables.net/1.11.0/css/dataTables.bootstrap5.min.css">

</head>

<body>

    <div id="example">
        <!-->dynamic initialisation where first row of array will be headers<-->
    </div>

    <script>
        $(document).ready(function() {
            // Setup - add a text input to each footer cell
            var dataHere = [
                ["Name", "Role", "Place", "ID", "Date"],
                [
                    "Tiger Nixon",
                    "System Architect",
                    "Edinburgh",
                    "5421",
                    "2011/04/25",
                    ",120"
                ],
                [
                    "Garrett Winters",
                    "Director",
                    "Edinburgh",
                    "8422",
                    "2011/07/25",
                    ",300"
                ]
            ]
            $(document).ready(function() {
                var html = ''
                for (var j = 0; j < dataHere[0].length; j++) {
                    html = html + '<td><input type="' + dataHere[0][j] + '" placeholder="Search ' + dataHere[0][j] + '" /></td>'
                }
                $("#example thead tr").html(html);
                // DataTable
                var table = $('#example').DataTable({
                    "data": dataHere,
                    initComplete: function() {
                        $('#example thead th').each(function() {
                            var title = $(this).text();
                            $(this).html('<input type="text" placeholder="Search ' + title + '" />');
                        });
                        this.api().columns().every(function() {
                            var that = this;
                            $('input', this.footer()).on('keyup change clear', function() {
                                if (that.search() !== this.value) {
                                    that
                                        .search(this.value)
                                        .draw();
                                }
                            });
                        });
                    }
                });
            });
        });
    </script>

</body>

</html>

我需要这样实现，但是搜索框需要在顶部

https://datatables.net/examples/api/multi_filter.html

Answer 1

这有效。

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

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

  // Apply the search
  table.columns().eq(0).each(function(colIdx) {
    $('input', table.column(colIdx).footer()).on('keyup change', function() {
      table.column(colIdx)
        .search(this.value)
        .draw();
    });
  });
});

#example tfoot {
    display: table-header-group;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdn.datatables.net/1.11.0/js/jquery.dataTables.min.js"></script>
<script src="https://cdn.datatables.net/1.11.0/js/dataTables.bootstrap5.min.js"></script>
<link href="https://cdn.datatables.net/1.11.0/css/dataTables.bootstrap5.min.css" rel="stylesheet" />
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/5.0.1/css/bootstrap.min.css" rel="stylesheet" />

<table id="example" class="display table table-striped table-bordered" 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

我借鉴了你的出发点，做了一些修改。最终结果：

var dataHere = [
  ["Name", "Role", "Place", "Extn.", "Date"],
  [
    "Tiger Nixon",
    "System Architect",
    "Edinburgh",
    "5421",
    "2011/04/25",
  ],
  [
    "Garrett Winters",
    "Director",
    "London",
    "8422",
    "2011/07/25",
  ]
];
 
$(document).ready(function() {

  // build 2 headers - the 1st for sorting, the 2nd for filtering:
  var head1 = '<tr>';
  var head2 = '<tr>';
  for (var j = 0; j < dataHere[0].length; j++) {
    head1 = head1 + '<th>' + dataHere[0][j] + '</th>';
    head2 = head2 + '<th><input type="' 
        + dataHere[0][j] 
        + '" placeholder="Search ' 
        + dataHere[0][j] + '" /></th>';
  }
  head1 = head1 + '</tr>';
  head2 = head2 + '</tr>';
  $("#example thead").html(head1 + head2);
  
  var table = $('#example').DataTable({
    data: dataHere.slice(1),
    orderCellsTop: true,
    initComplete: function() {
      // add event handlers to each of our column filters:
      $('#example thead tr:eq(1) th').each( function (i) {
        $( 'input', this ).on( 'keyup change', function () {
          if ( table.column(i).search() !== this.value ) {
            table.column(i).search( this.value ).draw();
          }
        } );
      } );
    }
  });

} );

<!doctype html>
<html>
<head>
  <meta charset="UTF-8">
  <title>Demo</title>

  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
  <script src="https://cdn.datatables.net/1.11.0/js/jquery.dataTables.min.js" type="text/javascript"></script>
  <script src="https://cdn.datatables.net/1.11.0/js/dataTables.bootstrap5.min.js" type="text/javascript"></script>

  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/5.0.1/css/bootstrap.min.css">
  <link rel="stylesheet" href="https://cdn.datatables.net/1.11.0/css/dataTables.bootstrap5.min.css">

</head>

<body>

<div style="margin: 20px;">
    
    <table id="example" class="display dataTable cell-border" style="width:100%">
        <thead></thead>
        <tbody></tbody>
    </table>

</div>

</body>
</html>

我做的主要改动：

确保 dataHere 行数据在值的数量和数据类型方面与标题数据匹配。
为方便起见，提供一个带有空 <thead> 和 <tbody> 标记的起始 HTML 结构（使 JavaScript 代码更容易一些）。
在 JavaScript 中，构建 2 header 行。这是为了确保排序事件与过滤事件完全分开。否则，如果 DataTable 中只有一个标题行，则每次尝试筛选时都会排序。
在 DataTable 定义中包含 orderCellsTop: true。从第 (3) 点开始，这告诉 DataTables 只有 table 中的第一个标题行用于排序。
删除了不需要的代码。因为您正在构建 HTML table up-front，您已经拥有所需的过滤器 - 您不需要在 DataTable 初始化代码中重复该逻辑。

无法按 DataTable 中的列显示过滤器

unable to display the filter by columns in DataTable

javascript

jquery

datatables