如何从下拉列表中替换表格单元格值？

Question

I need to "massage" a HTML table.

On the page there is a dropdown:

<SELECT CLASS='slctor' size='1' NAME='KEYVAL' ID='KEYVAL' >
                  <OPTION VALUE='{*}'>*
                  </OPTION>
                  <OPTION value='10'>green
                  </OPTION>
                  <OPTION value='20'>green
                  </OPTION>
                  <OPTION value='30'>green
                  </OPTION>
                  <OPTION value='40'>yellow
                  </OPTION>
                  <OPTION value='90'>red
                  </OPTION>
                </SELECT>

I also have a table with Person/year and a value for each pair:

<table>
<tr>
  <td></td>
  <td>2001</td>
  <td>2002</td>
  <td>2003</td>
</tr>
<tr>
  <td>JOE</td>
  <td>10</td>
  <td>30</td>
  <td>90</td>
</tr><tr>
  <td>BETTY</td>
  <td>20</td>
  <td>20</td>
  <td>40</td>
</tr>
</table>

I want to use jQuery to "resolve" each cell value from the dropdowns value, return the label, and replace the cell content (or the background color).

I am able to do the basics, as in the actual DOM manipulation, but I need help actually doing the lookup in a efficient manner.

Answer 1

Try this:

$(".slctor").change(function(){
    var selectedVal=$(this).val();
    $('table').find('td').filter(function(){return $(this).text() ==selectedVal}).css("background-color","red");
   //or
      $('table').find('td').filter(function(){return $(this).text() ==selectedVal}).text("New Text");
});