Fail to update fields using dropdownlist ajax and json

Hi my fellow Yii members,

I have this problem for more than two days now. I cant replace these two field when the dropdown value is changed using ajax and json. Please help me where I went wrong

My view code is:


<div class="form">


<?php $form=$this->beginWidget('CActiveForm', array(

	'id'=>'activities-form',

	'enableAjaxValidation'=>false,

)); ?>


	


	<?php echo $form->errorSummary($model); ?>

	<table cellpadding="0" cellspacing="0">

	<tr><th>Objective</th>

	<td><div class="row"><?php echo $form->dropDownList($model,'objid',$model->getObjectives(),

	array(

	'ajax'=>  array(

                 'type'=>'POST', //request type

				  'dataType'=>'json',

                  'url'=>CController::createUrl('activities/getKT'), //url to call.

                  'success'=>'function(data){

				  $("#kpi").val(data.data1);

				  $("#targets").val(data.data2);

				  }')

				  

				 

      )); 

	?></div></td></tr>

    <tr><th>KPI/Measures</th><td><span id="kpi"></span></td></tr>

	<tr><th>Targets</th><td><span id="targets"></span></td></tr>

	<tr><th>Initiatives</th>

	<td><div class="simple">

		<?php $this->widget('ext.widgets.xheditor.XHeditor',array(

    'model'=>$model,

    'modelAttribute'=>'actname',

    'config'=>array(

        'id'=>'xheditor_4',

        'tools'=>'simple', // mini, simple, mfull, full or from XHeditor::$_tools, tool names are case sensitive

        'skin'=>'o2007blue', // default, nostyle, o2007blue, o2007silver, vista

        'width'=>'420px',

        'height'=>'60px',

        'loadCSS'=>XHtml::cssUrl('editor.css'),

    ),

)); ?>

	</div></td></tr>

	<tr><th>Weight(%)</th>

	<td><div class="simple"><?php echo $form->textField($model,'weight',array('size'=>8,'maxlength'=>5)); ?></div></td></tr>

	<tr><th>&nbsp;</th><th>

		<?php echo CHtml::submitButton($model->isNewRecord ? 'Save' : 'Update'); ?>

	</th></tr></table>


<?php $this->endWidget(); ?>


</div><!-- form -->

My controller code:




public function actiongetKT()

	{

	  $objid = $_POST['Activities']['objid'];

	  $data = Yii::app()->db->createCommand("SELECT kpi,targets FROM objectives WHERE objid='$objid'")->queryRow(false);

	  echo CJSON::encode(array(

	       'data1'=>$data[0],

		   'data2'=>$data[1],

		   ));

	}



You need to use a tool like firebug to check if the ajax call has been made at all… and if it is… than to check what is returned by the call…