在选择更改后填充输入

Question

按照下表，我如何在选择更改时填充行输入？

我有几行作为一个。

<table class="table table-striped table-bordered"> 
    <tbody> 
     <tr> 
      <th width="60%">Date</th> 
      <th width="40%">Rate</th> 
     </tr> 
     <tr> 
      <th>Today<br><select name="RAT_Rates" class="form-control"><option data-name="" data-description="" data-rate="" selected="">Custom</option><option data-name="Special" data-description="Special" data-rate="99.99"> Special - $ 99.99</option></select></th> 
      <td> 
       <div class="col-sm-12"> 
        <input type="text" name="BIL_Rate[]" class="form-control" required=""> 
       </div> 
      </td> 
     </tr> 
     <tr> 
      <th>Tomorrow<br><select name="RAT_Rates" class="form-control"><option data-name="" data-description="" data-rate="" selected="">Custom</option><option data-name="Special" data-description="Special" data-rate="99.99"> Special - $ 99.99</option></select></th> 
      <td> 
       <div class="col-sm-12"> 
        <input type="text" name="BIL_Rate[]" class="form-control" required=""> 
       </div> 
      </td> 
     </tr> 
    </tbody> 
</table> 

我亲眼：

$('select[name=RAT_Rates]').on('change', function() { 
    var selected = $(this).find('option:selected'); 

    var name = selected.attr('data-name'); 
    var description = selected.attr('data-description'); 
    var rate = selected.attr('data-rate'); 

    $(this).next('input[name=BIL_Rate]').val(rate); 
}); 

非常感谢。

Answer 1

要使用属性选择器，你需要使用两套报价。
一套选择器本身...
而你需要一个属性值。

所以$('select[name=RAT_Rates]')应该是$("select[name='RAT_Rates']")。

然后（这是次要的，但有效的HTML总是有帮助），您的select元素未关闭。

$("select[name='RAT_Rates']").on('change', function() { 
 

 
    var selected = $(this).find('option:selected'); 
 

 
    var name = selected.attr('data-name'); 
 
    var description = selected.attr('data-description'); 
 
    var rate = selected.attr('data-rate'); 
 

 
    $(this).closest("tr").find("input[name='BIL_Rate[]']").val(rate); 
 
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 
 

 
<table class="table table-striped table-bordered"> 
 
    <tbody> 
 
    <tr> 
 
     <th width="60%">Date</th> 
 
     <th width="40%">Rate</th> 
 
    </tr> 
 
    <tr> 
 
     <th> 
 
     Today<br> 
 
     <select name="RAT_Rates" class="form-control"> 
 
      <option data-name="" data-description="" data-rate="" selected="">Custom</option> 
 
      <option data-name="Special" data-description="Special" data-rate="99.99"> Special - $ 99.99</option> 
 
     </select> 
 
     </th> 
 
     <td> 
 
     <div class="col-sm-12"> 
 
      <input type="text" name="BIL_Rate[]" class="form-control" required=""> 
 
     </div> 
 
     </td> 
 
    </tr> 
 
    </tbody> 
 
</table>

Answer 2

您可以使用parent（）并使用find（）在里面找到类。下面请我的更新代码：

HTML

<table class="table table-striped table-bordered"> 
<tbody> 
    <tr> 
     <th width="60%">Date</th> 
     <th width="40%">Rate</th> 
    </tr> 
    <tr> 
     <th>Today<br><select name="RAT_Rates" class="form-control"><option data-name="" data-description="" data-rate="" selected="">Custom</option><option data-name="Special" data-description="Special" data-rate="99.99"> Special - $ 99.99</option></select></th> 
     <td> 
      <div class="col-sm-12"> 
       <input type="text" name="BIL_Rate[]" class="form-control input_rate" required=""> 
      </div> 
     </td> 
    </tr> 
    <tr> 
     <th>Today<br><select name="RAT_Rates" class="form-control"><option data-name="" data-description="" data-rate="" selected="">Custom</option><option data-name="Special" data-description="Special" data-rate="99.99"> Special - $ 99.99</option></select></th> 
     <td> 
      <div class="col-sm-12"> 
       <input type="text" name="BIL_Rate[]" class="form-control input_rate" required=""> 
      </div> 
     </td> 
    </tr> 
    <tr> 
     <th>Today<br><select name="RAT_Rates" class="form-control"><option data-name="" data-description="" data-rate="" selected="">Custom</option><option data-name="Special" data-description="Special" data-rate="99.99"> Special - $ 99.99</option></select></th> 
     <td> 
      <div class="col-sm-12"> 
       <input type="text" name="BIL_Rate[]" class="form-control input_rate" required=""> 
      </div> 
     </td> 
    </tr> 
</tbody> 

的Javascript：

$('select[name=RAT_Rates]').on('change', function() { 
var selected = $(this).find('option:selected'); 

var name = selected.attr('data-name'); 
var description = selected.attr('data-description'); 
var rate = selected.attr('data-rate'); 

$(this).parent().parent().find('.input_rate').val(rate); 
}); 

Answer 3

这里是你想要的东西 -

$('select[name=RAT_Rates]').on('change', function() { 
 
    var selected = $(this).find('option:selected'); 
 

 
    var name = selected.attr('data-name'); 
 
    var description = selected.attr('data-description'); 
 
    var rate = selected.attr('data-rate'); 
 
    $(this).closest('td').next('td').find($("input[name='BIL_Rate[]']")).val(rate); 
 
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 
 
<table class="table table-striped table-bordered"> 
 
    <tbody> 
 
     <tr> 
 
      <th width="60%">Date</th> 
 
      <th width="40%">Rate</th> 
 
     </tr> 
 
     <tr> 
 
      <td> 
 
      <div> 
 
      Today 
 
      </div> 
 
       <select name="RAT_Rates" class="form-control"> 
 
       <option data-name="" data-description="" data-rate="" selected="">Custom</option> 
 
       <option data-name="Special" data-description="Special" data-rate="99.99"> Special - $ 99.99</option> 
 
       </select> 
 
      </td> 
 
      <td> 
 
       <div class="col-sm-12"> 
 
        <input type="text" name="BIL_Rate[]" class="form-control" required=""> 
 
       </div> 
 
      </td> 
 
     </tr> 
 
     <tr> 
 
     <td><div> 
 
     Tomorrow 
 
     </div> 
 
      <select name="RAT_Rates" class="form-control"><option data-name="" data-description="" data-rate="" selected="">Custom</option><option data-name="Special" data-description="Special" data-rate="99.99"> Special - $ 99.99</option></select> 
 
      </td> 
 
      <td> 
 
       <div class="col-sm-12"> 
 
        <input type="text" name="BIL_Rate[]" class="form-control" required=""> 
 
       </div> 
 
      </td> 
 
     </tr> 
 
    </tbody> 
 
</table>

感谢