Bootstrap Datatables Javascript-长度菜单和导出按钮彼此之间太相互矛盾-希望在两者之间创建换行符

分类：编程问答

如何解决Bootstrap Datatables Javascript-长度菜单和导出按钮彼此之间太相互矛盾-希望在两者之间创建换行符

我正在开发一个可搜索的表，用户需要在该表中导出其结果，还可以选择他们看到的结果数。问题在于，一切看起来都挤在一起了。我希望能够添加一个换行符，一个段落或一个div来分隔内容。基本上，我想要这样：

项目搜索

显示[数量]个条目

[复制] [Excel] [CSV] [PDF] [栏可见性]

[我的桌子]

我将如何去做？我在这里不能依靠我可靠的BR和P html标签，但是我想弄清楚这一点。

$(document).ready(function() {
  $('#example').DataTable({
    "lengthMenu": [10,25,50,75,100],dom: 'lBfrtip',"columnDefs": [{
        "targets": [],"visible": false,"searchable": false
      },{
        "targets": [],"visible": false
      }
    ],buttons: [{
        extend: 'copyHtml5',exportOptions: {
          columns: ':visible',format: {
            body: function(data,row,column,node) {
              var text = node.textContent;
              return column === 10 ? text.replace(/Open$/,'').trim() : data;
            }
          }
        }
      },{
        extend: 'excelHtml5',{
        extend: 'csvHtml5',{
        extend: 'pdfHtml5',orientation: 'landscape','colvis'
    ]
  });
});
div.dt-button-collection {
  width: 215px;
}

.display.dataTable {
  font-family: Verdana,Geneva,Tahoma,sans-serif;
  font-size: 12px;
}

.modal {
  max-width: 1000px;
  margin: 2rem auto;
}

td.none {
  display: none;
}
<link rel="stylesheet" href="https://cdn.datatables.net/1.10.21/css/jquery.dataTables.min.css" />
<link rel "=stylesheet" href="https://cdn.datatables.net/buttons/1.6.2/css/buttons.dataTables.min.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.0.0/jquery.min.js"></script>

<!-- jQuery Modal -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-modal/0.9.1/jquery.modal.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jquery-modal/0.9.1/jquery.modal.min.css" />

<link href="https://cdn.datatables.net/buttons/1.2.2/css/buttons.dataTables.css" rel="stylesheet" />
<script src="https://cdn.datatables.net/1.10.16/js/jquery.dataTables.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jszip/3.1.3/jszip.min.js"></script>
<script src="https://cdn.datatables.net/buttons/1.4.2/js/dataTables.buttons.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdfmake/0.1.32/pdfmake.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdfmake/0.1.32/vfs_fonts.js"></script>
<script src="https://cdn.datatables.net/buttons/1.4.2/js/buttons.html5.min.js"></script>
<script src="https://code.jquery.com/jquery-3.5.1.js"></script>
<script src="https://cdn.datatables.net/1.10.21/js/jquery.dataTables.min.js"></script>
<script src="https://cdn.datatables.net/buttons/1.6.2/js/dataTables.buttons.min.js"></script>
<script src="https://cdn.datatables.net/buttons/1.6.2/js/buttons.html5.min.js"></script>
<script src="https://cdn.datatables.net/buttons/1.6.2/js/buttons.colVis.min.js"></script>
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">


<table id="example" class="display">
  <thead>
    <tr>
      <th class="all" data-toggle="tooltip" title="The known name of the project.">Project Name</th>
      <th class="all" data-toggle="tooltip" title="The provided unique ID that distinguishes projects.">Project Number</th>
      <th class="all" data-toggle="tooltip" title="The conclusing time point of a project,which is sometimes,but not always the point at which funding ends.">End Date</th>
      <th class="all" data-toggle="tooltip" title="The primary funder of the project.">Funder</th>

      <th class="all" data-toggle="tooltip" title="A brief description on the scope and aims of a project.">Abstract</th>

    </tr>
  </thead>
  <tbody>

    <tr>

      <td>Project 1</td>

      <td>P-1</td>

      <td>2018-04-30 00:00:00</td>

      <td>NIH</td>

      <td>
        <div id="ex83" class="modal">
          <p>

            Abstract 1
            <a href="#" rel="modal:close"></a>
        </div>
        <p><a href="#ex83" rel="modal:open"><button class="button">Open<span></span></button></a></p>
      </td>
    </tr>
    <tr>

      <td>Project 2</td>

      <td>P-2</td>

      <td>2024-03-31 00:00:00</td>

      <td>NIH</td>

      <td>
        <div id="ex103" class="modal">
          <p>

            Abstract 2
            <a href="#" rel="modal:close"></a>
        </div>
        <p><a href="#ex103" rel="modal:open"><button class="button">Open<span></span></button></a></p>
      </td>
    </tr>
    <tr>

      <td>Project 3</td>

      <td>P-3</td>

      <td>2021-01-31 00:00:00</td>

      <td>NIH</td>

      <td>
        <div id="ex111" class="modal">
          <p> Abstract 3</p>
          <a href="#" rel="modal:close"></a>
        </div>
        <p><a href="#ex111" rel="modal:open"><button class="button">Open<span></span></button></a></p>
      </td>
    </tr>


  </tbody>
</table>

解决方法

如果我对您的理解正确，我只会添加以下CSS规则：

.dataTables_length {
    position: relative;
    float: none !important;
    text-align: center;
}

很显然，如果您不希望Show [Number] Entries水平居中，只需移除text-align: center; 

$(document).ready(function() {
  $('#example').DataTable({
    "lengthMenu": [10,25,50,75,100],dom: '<l>Bfrtip',"columnDefs": [{
        "targets": [],"visible": false,"searchable": false
      },{
        "targets": [],"visible": false
      }
    ],buttons: [{
        extend: 'copyHtml5',exportOptions: {
          columns: ':visible',format: {
            body: function(data,row,column,node) {
              var text = node.textContent;
              return column === 10 ? text.replace(/Open$/,'').trim() : data;
            }
          }
        }
      },{
        extend: 'excelHtml5',{
        extend: 'csvHtml5',{
        extend: 'pdfHtml5',orientation: 'landscape','colvis'
    ]
  });
});
div.dt-button-collection {
  width: 215px;
}

.display.dataTable {
  font-family: Verdana,Geneva,Tahoma,sans-serif;
  font-size: 12px;
}

.modal {
  max-width: 1000px;
  margin: 2rem auto;
}

td.none {
  display: none;
}

div.dt-buttons {
    float: none;
}

.dataTables_length {
    position: relative;
    float: none !important;
    text-align: center;
}
<link rel="stylesheet" href="https://cdn.datatables.net/1.10.21/css/jquery.dataTables.min.css" />
<link rel "=stylesheet" href="https://cdn.datatables.net/buttons/1.6.2/css/buttons.dataTables.min.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.0.0/jquery.min.js"></script>

<!-- jQuery Modal -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-modal/0.9.1/jquery.modal.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jquery-modal/0.9.1/jquery.modal.min.css" />

<link href="https://cdn.datatables.net/buttons/1.2.2/css/buttons.dataTables.css" rel="stylesheet" />
<script src="https://cdn.datatables.net/1.10.16/js/jquery.dataTables.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jszip/3.1.3/jszip.min.js"></script>
<script src="https://cdn.datatables.net/buttons/1.4.2/js/dataTables.buttons.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdfmake/0.1.32/pdfmake.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdfmake/0.1.32/vfs_fonts.js"></script>
<script src="https://cdn.datatables.net/buttons/1.4.2/js/buttons.html5.min.js"></script>
<script src="https://code.jquery.com/jquery-3.5.1.js"></script>
<script src="https://cdn.datatables.net/1.10.21/js/jquery.dataTables.min.js"></script>
<script src="https://cdn.datatables.net/buttons/1.6.2/js/dataTables.buttons.min.js"></script>
<script src="https://cdn.datatables.net/buttons/1.6.2/js/buttons.html5.min.js"></script>
<script src="https://cdn.datatables.net/buttons/1.6.2/js/buttons.colVis.min.js"></script>
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">


<table id="example" class="display">
  <thead>
    <tr>
      <th class="all" data-toggle="tooltip" title="The known name of the project.">Project Name</th>
      <th class="all" data-toggle="tooltip" title="The provided unique ID that distinguishes projects.">Project Number</th>
      <th class="all" data-toggle="tooltip" title="The conclusing time point of a project,which is sometimes,but not always the point at which funding ends.">End Date</th>
      <th class="all" data-toggle="tooltip" title="The primary funder of the project.">Funder</th>

      <th class="all" data-toggle="tooltip" title="A brief description on the scope and aims of a project.">Abstract</th>

    </tr>
  </thead>
  <tbody>

    <tr>

      <td>Project 1</td>

      <td>P-1</td>

      <td>2018-04-30 00:00:00</td>

      <td>NIH</td>

      <td>
        <div id="ex83" class="modal">
          <p>

            Abstract 1
            <a href="#" rel="modal:close"></a>
        </div>
        <p><a href="#ex83" rel="modal:open"><button class="button">Open<span></span></button></a></p>
      </td>
    </tr>
    <tr>

      <td>Project 2</td>

      <td>P-2</td>

      <td>2024-03-31 00:00:00</td>

      <td>NIH</td>

      <td>
        <div id="ex103" class="modal">
          <p>

            Abstract 2
            <a href="#" rel="modal:close"></a>
        </div>
        <p><a href="#ex103" rel="modal:open"><button class="button">Open<span></span></button></a></p>
      </td>
    </tr>
    <tr>

      <td>Project 3</td>

      <td>P-3</td>

      <td>2021-01-31 00:00:00</td>

      <td>NIH</td>

      <td>
        <div id="ex111" class="modal">
          <p> Abstract 3</p>
          <a href="#" rel="modal:close"></a>
        </div>
        <p><a href="#ex111" rel="modal:open"><button class="button">Open<span></span></button></a></p>
      </td>
    </tr>


  </tbody>
</table>

顺便说一句，您什么也没说Search box

快乐编码！

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