how to use ajax in the script and call the controller

Permalink 1 user found helpful October 08, 2013 at 6:54 AM

hi I'm working i web application,
I want to run function without page reloading and need to call function as AJAX.

i using two dropdown box, my requirement is, the second dropdown box should display a set of values from database is based on the selection from the first dropdown box.

<select name="taProj" id="taProj" onchange= "checkField(this.value)">
                     <option value="" >-------------------------</option>
                     <?php   foreach ($tap as $row){?>               
                     <option value="<?php echo $row['proj_id']; ?>" ><?php echo $row['proj_name'];?></option>
                     <?php } ?>
                  </select>

script code:

<script type="text/javascript">
   function checkField(val){
alert(val);
}
</script>

how to call my controller from onchange event of the select and then load the my another dropdownlist
please give the suggestion ..

thanks
Kumar

JohntheFish replied on Oct 8, 2013 at 7:01 am Permalink Reply

Have a look at
http://www.concrete5.org/documentation/how-tos/developers/ajax-less...

and the associated addon

shankumars replied on Oct 8, 2013 at 7:21 am Permalink Reply

thanks John ... but i want solution without add any addon,,, is it possible?

JohntheFish replied on Oct 8, 2013 at 8:35 am Permalink Reply

The addon is not a solution.

It is examples of how ajax works in c5 that you can use to learn how to put together your own solution. Hence 'lessons'.