The examples show how multiple KoolComboBoxes can work together using ajax.
<?php
require $KoolControlsFolder."/KoolComboBox/koolcombobox.php";
require $KoolControlsFolder."/KoolAjax/koolajax.php";
if($koolajax->isCallback)
{
sleep(1);
}
$selected_continent_id = null;
if(isset($_POST["kcb_continent_selectedValue"]))
{
$selected_continent_id = $_POST["kcb_continent_selectedValue"];
}
$kcb_continent = new KoolComboBox("kcb_continent");
$kcb_continent->scriptFolder = $KoolControlsFolder."/KoolComboBox";
$kcb_continent->styleFolder="default";
$kcb_continent->width = "185px";
$result = mysqli_query($db_con, "select ContinentID,ContinentName from kcb_tbcontinents");
while($row= mysqli_fetch_assoc($result))
{
$kcb_continent->addItem($row["ContinentName"],$row["ContinentID"],null,($selected_continent_id==$row["ContinentID"]));
}
$selected_country_id = null;
if(isset($_POST["kcb_country_selectedValue"]))
{
$selected_country_id = $_POST["kcb_country_selectedValue"];
}
$kcb_country = new KoolComboBox("kcb_country");
$kcb_country->scriptFolder = $KoolControlsFolder."/KoolComboBox";
$kcb_country->styleFolder="default";
$kcb_country->width = "185px";
if($selected_continent_id!=null)
{
$result = mysqli_query($db_con, "select CountryID,CountryName from kcb_tbcountries where ContinentID=$selected_continent_id");
while($row= mysqli_fetch_assoc($result))
{
$kcb_country->addItem($row["CountryName"],$row["CountryID"],null,($selected_country_id==$row["CountryID"]));
}
}
$kcb_city = new KoolComboBox("kcb_city");
$kcb_city->scriptFolder = $KoolControlsFolder."/KoolComboBox";
$kcb_city->styleFolder="default";
$kcb_city->width = "185px";
if($selected_country_id!=null)
{
$result = mysqli_query($db_con, "select CityID,CityName from kcb_tbcities where CountryID=$selected_country_id");
while($row= mysqli_fetch_assoc($result))
{
$kcb_city->addItem($row["CityName"],$row["CityID"]);
}
}
?>
<form id="form1" method="post">
<?php echo $koolajax->Render();?>
<style type="text/css">
.background
{
width:745px;
height:257px;
background:url(images/background.png);
}
.break
{
height:140px;
}
</style>
<?php echo KoolScripting::Start();?>
<updatepanel id="combobox_updatepanel" class="background">
<content>
<table style="width:745px;height:257px;">
<tr>
<td align="right" style="width:247px;">
<div class="break"></div>
<?php echo $kcb_continent->Render();?>
</td>
<td align="right" style="width:217px;">
<div class="break"></div>
<?php echo $kcb_country->Render();?>
</td>
<td align="right" style="width:218px;">
<div class="break"></div>
<?php echo $kcb_city->Render();?>
</td>
<td style="width:62px;"> </td>
</tr>
</table>
<script type="text/javascript">
kcb_continent.registerEvent("OnSelect",function(sender,arg){
combobox_updatepanel.update();
});
kcb_country.registerEvent("OnSelect",function(sender,arg){
combobox_updatepanel.update();
});
</script>
</content>
<loading opacity="50%" image="<?php echo $KoolControlsFolder; ?>/KoolAjax/loading/5.gif" />
</updatepanel>
<?php echo KoolScripting::End();?>
</form>
KoolComboBox - Advanced PHP ComboBoxFullVersion 1.8.0.0 released on 04/16/2012