如何在 jQuery/JavaScript 中获取行 ID onClick？

Question

我有一个填充了动态数据的表。 最后一列有一个按钮，当我单击该按钮时，我想将行 ID 传递给 JS function。 我需要 id，因为我正在执行 POST Ajax 请求，成功后我想获取响应数据并使用新数据更新所选行。

这就是我要插入新行的方法：

var rowNode = myTable.row.add([1,2,3,4,5,6,7,8]).draw();

但是我能做些什么来获取行 ID 并使用响应数据更新它？

编辑。 数据表：

<table id="myTable" class="display compact" cellspacing="0" width="100%">
        <thead>
            <tr>
                <th>Name</th>
                <th>Reg</th>  
                <th>Edit</th>                   
            </tr>
        </thead>
        <tbody>
            <?php foreach (get_all_customers_list() as $user) { ?>
                    <tr>
                        <td>
                            <b> <?php echo $user["recipient_name"]; ?></b>
                        </td>
                        <td>
                            <?php echo $user["registration_date"]; ?>
                        </td>                       
                        <td>
                            <button type="button" id="button_edit" onclick='edit_customer_request(<?php echo json_encode($user); ?>)' value="<?php echo $user; ?>" name="edit_customer">Editt</button>                             
                        </td>
                    </tr>
            <?php }?>
        </tbody>
 </table>

Answer 1

由于您只想获取clicked的行编辑按钮的row id 。 您可以简单地使用table.row function 并传递单击按钮的实际tr 。

演示（显示存储为名称的actual id (1, 2)）

 var table = $('#myTable').DataTable({}) //edit customer here function edit_customer_request(_this) { //Getting the actual table ID var row = $(_this).parents('tr')[0]; //Data table row id console.log(table.row(row).data()[0]); }

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/datatables/1.10.21/js/jquery.dataTables.min.js" integrity="sha512-BkpSL20WETFylMrcirBahHfSnY++H2O1W+UnEEO4yNIl+jI2+zowyoGJpbtk6bx97fBXf++WJHSSK2MV4ghPcg==" crossorigin="anonymous"></script> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/datatables/1.10.21/css/jquery.dataTables.min.css" integrity="sha512-1k7mWiTNoyx2XtmI96o+hdjP8nn0f3Z2N4oF/9ZZRgijyV4omsKOXEnqL1gKQNPy2MTSP9rIEWGcH/CInulptA==" crossorigin="anonymous" /> <table id="myTable" class="display compact" cellspacing="0" width="100%"> <thead> <tr> <th>Name</th> <th>Reg</th> <th>Edit</th> </tr> </thead> <tbody> <tr> <td>1</td> <td>Tiger Blah</td> <td><button type="button" class="button_edit" onclick='edit_customer_request(this, 1)' value="1" name="edit_customer">Edit</button></td> </tr>tr> <tr> <td>2</td> <td>Blah Nixon</td> <td><button type="button" class="button_edit" onclick='edit_customer_request(this,2)' value="2" name="edit_customer">Edit</button></td> </tr> </tbody> </table>

演示（显示表的实际索引 - 索引从 0 开始到取决于您拥有的行数）

 var table = $('#myTable').DataTable({}) //edit customer here function edit_customer_request(_this) { //get the closest of clicked edit button var tr = $(_this).closest("tr"); //get the index of row var rowindex = tr.index(); //Index of row console.log(rowindex) }

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/datatables/1.10.21/js/jquery.dataTables.min.js" integrity="sha512-BkpSL20WETFylMrcirBahHfSnY++H2O1W+UnEEO4yNIl+jI2+zowyoGJpbtk6bx97fBXf++WJHSSK2MV4ghPcg==" crossorigin="anonymous"></script> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/datatables/1.10.21/css/jquery.dataTables.min.css" integrity="sha512-1k7mWiTNoyx2XtmI96o+hdjP8nn0f3Z2N4oF/9ZZRgijyV4omsKOXEnqL1gKQNPy2MTSP9rIEWGcH/CInulptA==" crossorigin="anonymous" /> <table id="myTable" class="display compact" cellspacing="0" width="100%"> <thead> <tr> <th>Name</th> <th>Reg</th> <th>Edit</th> </tr> </thead> <tbody> <tr> <td>1</td> <td>Tiger Blah</td> <td><button type="button" class="button_edit" onclick='edit_customer_request(this, 1)' value="1" name="edit_customer">Edit</button></td> </tr>tr> <tr> <td>2</td> <td>Blah Nixon</td> <td><button type="button" class="button_edit" onclick='edit_customer_request(this,2)' value="2" name="edit_customer">Edit</button></td> </tr> </tbody> </table>

Answer 2

这是我的简单回答：

var table = $('#table-values');

$('#table-values').on( 'click', 'tr', function(){
    var id = this.id;

    alert( 'Clicked row id '+id );
  });

简单的。 :)