javascript - How to make autofill input text from a select dropdown box with multiple lines? -


i trying have function user can select items want drop-down box, price displayed in input box @ side.

i facing problem have same function in multiple lines. code below:

<td class="formiterate" >                                                    <select id="employee_id" name="id[]">         <option value="">select one</option>         <?php         $st = $pdo->prepare("select * tbl_stock");         $st->execute();         $rowes = $st->fetchall(pdo::fetch_assoc);         foreach ($rowes $rowe) {             ?><option value="<?= $rowe ['id']; ?>"><?= $rowe ['stock_item']; ?> (<?= $rowe ['stock_brand']; ?>)</option><?php         }     ?>     </select> </td> <td class="formiterate"><input type="text" name="last_name[]" id="last_name"></td> 

as can see, when select employee_id, item price reflect in last_name[] input box.

whilst code works fine single row, not able iterate function multiple row.

below javascript:

$(function() { // code executed when dom ready     $('#employee_id').change(function() { // when value employee_id element change, triggered         var $row = $(this); // create jquery object select inside         $.post("getdata.php", { employee_id : $row.val()}, function(json) {             if (json && json.status) {                 $('#last_name').val(json.lastname);             }         })     }); }) 

i have tried adding .closest(".rows") @ var ($row)= $this, noting happened.

please help.

thanks

an example (hard code example):-

abc.php:-

<?php error_reporting(e_all); //check type of errors ini_set('display_errors',1); $rowes = array(0=>array('id'=>1,'stock_item'=>'item1','stock_brand'=>'demo1'),1=>array('id'=>2,'stock_item'=>'item2','stock_brand'=>'demo2'),2=>array('id'=>3,'stock_item'=>'item3','stock_brand'=>'demo3')); ?> <html> <body> <table> <tr style= "float:left;width:100%"> <td class="formiterate" >                                                    <select class="employee_id" name="id[]">         <option value="">select one</option>         <?php         foreach ($rowes $rowe) {             ?><option value="<?= $rowe ['id']; ?>"><?= $rowe ['stock_item']; ?> (<?= $rowe ['stock_brand']; ?>)</option><?php         }     ?>     </select> </td> <td class="formiterate"><input type="text" name="last_name[]" class="last_name"></td> </tr> <tr style= "float:left;width:100%">     <td class="formiterate" >                                                        <select class="employee_id" name="id[]">             <option value="">select one</option>             <?php             foreach ($rowes $rowe) {                 ?><option value="<?= $rowe ['id']; ?>"><?= $rowe ['stock_item']; ?> (<?= $rowe ['stock_brand']; ?>)</option><?php             }         ?>         </select>     </td>  <td class="formiterate"><input type="text" name="last_name[]" class="last_name"></td> </tr> </table> </body> <script src = "https://code.jquery.com/jquery-3.1.0.min.js"></script> <script> $(function() { // code executed when dom ready     $('.employee_id').change(function() { // when value employee_id element change, triggered         var data =  $(this).children(':selected').text();         console.log(data);         $(this).parent().next().find('.last_name').val(data);     }); }) </script> </html> 

output @ end (after selection drop-down):- http://prntscr.com/chernw

note:- put code separate file , run. can understand have do, , change in code accordingly.thanks.

in case try this:-

$(function() { // code executed when dom ready     $('.employee_id').change(function() { // when value employee_id element change, triggered         var currentseletbox = $(this);         var data =  $(this).children(':selected').text();         $.post("getdata.php", { employee_id : $row.val()}, function(json) {             if (json && json.status) {                 currentseletbox.parent().next().find('.last_name').val(json.lastname);             }         });     }); }) 

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