Validate field value from ajax

Hi all,

I’m new to Yii Framework. I would like to know is it possible to validate a field which value is generated from an ajax request. I have a ‘Code’ field which will trigger ajax request after input and on success it will fill in a ‘Level’ field. I have something like this on my form:


<?php echo $form->textField($model,'code', array(

								'size'=>10,

								'maxlength'=>10,

                                'ajax' => array(

                                    'id'=>'code',

                                    'type'=>'POST',

                                    'url'=>Yii::app()->createUrl('master/check'),

                                    'success'=>$model->addError('level','Error'),

                                ),

                          )); ?>

In my case, the $model->addError function is called not after the ajax but right after the page is loaded. Any idea what went wrong?