Databases
StackOverflow2013
Postsdbo
POselectbox doesn't change by ajax
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POselectbox doesn't change by ajax
    primarykey
    data
    text
    <p>I have ajax code that display the name of the cities(in selectbox) according the area that has been chosen:</p> <pre><code>&lt;?PHP if ($_POST) { ?&gt; $(document).ready(function(){ $('#areaID').filter(function(){ var areaID=$('#areaID').val(); var cityID=&lt;?PHP echo $cityID ?&gt;; $('#cityID').load('js/ajax/getCities.php?areaID=' + areaID+'&amp;cityID=' + cityID); return false; }); }); &lt;?PHP }else { ?&gt; $(function () { function updateCitySelectBox() { var areaID = $('#areaID').val(); $('#cityID').load('js/ajax/getCities.php?areaID=' + areaID); return false; } updateCitySelectBox(); $('#areaID').change(updateCitySelectBox); }); &lt;?PHP } ?&gt; </code></pre> <p>The problem is - after user submit the form and get error (i.e - forget to fill some field), user can change the area but the cities select box doesn't change according the new area.</p> <p>What is wrong with the code?</p> <pre><code>&lt;p&gt;&lt;label&gt;area&lt;/label&gt; &lt;select name='areaID' id='areaID'&gt; &lt;?PHP $query = mysql_query("SELECT * FROM `areas` ORDER BY id ASC "); while($index = mysql_fetch_array($query)) { $db_area_id = $index['id']; $db_area_name = $index['name']; if ($db_area_id == $areaID) echo "&lt;option value='$db_area_id' selected&gt;$db_area_name&lt;/option&gt;"; else echo "&lt;option value='$db_area_id'&gt;$db_area_name&lt;/option&gt;"; } ?&gt; &lt;/select&gt;&lt;span&gt;*&lt;/span&gt; &lt;/p&gt; &lt;p&gt;&lt;label&gt;City&lt;/label&gt; &lt;select id='cityID' name='cityID'&gt; &lt;/select&gt; &lt;/p&gt; </code></pre>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USRoi
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. COWhat HTML code are you receiving from the ajax call?
      singulars
      1. POselectbox doesn't change by ajax
      1. USRaúl Juárez
    2. COin the city selectbox I see the same values that connect to the area value i chose before. but when I'm chossing new area, the city value doesn't change. I'm talking only after the first form submit
      singulars
      1. POselectbox doesn't change by ajax
      1. USRoi
    3. COBut the ajax call gives you some response, can you post the response that your getting from that call?
      singulars
      1. POselectbox doesn't change by ajax
      1. USRaúl Juárez
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload